Home / 1,225,737,857.60-1,838,606,786.40-407,932,827.20

Finding the Fourth Proportional to 1,225,737,857.60, 1,838,606,786.40 and 407,932,827.20

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Solution

The fourth proportional to 1,225,737,857.60, 1,838,606,786.40 and 407,932,827.20 is: 611,899,240.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,737,857.60 : 1,838,606,786.40 = 407,932,827.20 : x
  2. Step 2: Convert to fraction form
    1,225,737,857.60/1,838,606,786.40 = 407,932,827.20/x
  3. Step 3: Cross multiply
    1,225,737,857.60x = 1,838,606,786.40 × 407,932,827.20
  4. Step 4: Simplify right side
    1,225,737,857.60x = 750,028,064,485,258,496
  5. Step 5: Solve for x
    x = 750,028,064,485,258,496/1,225,737,857.60
  6. Step 6: Final answer
    x = 611,899,240.80

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.