Home / 1,078,009.40-1,617,014.10-658,105.40

Finding the Fourth Proportional to 1,078,009.40, 1,617,014.10 and 658,105.40

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Solution

The fourth proportional to 1,078,009.40, 1,617,014.10 and 658,105.40 is: 987,158.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,009.40 : 1,617,014.10 = 658,105.40 : x
  2. Step 2: Convert to fraction form
    1,078,009.40/1,617,014.10 = 658,105.40/x
  3. Step 3: Cross multiply
    1,078,009.40x = 1,617,014.10 × 658,105.40
  4. Step 4: Simplify right side
    1,078,009.40x = 1,064,165,711,086.14
  5. Step 5: Solve for x
    x = 1,064,165,711,086.14/1,078,009.40
  6. Step 6: Final answer
    x = 987,158.10

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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.