Home / 871,056,193.20-1,306,584,289.80-386,382,001.20

Finding the Fourth Proportional to 871,056,193.20, 1,306,584,289.80 and 386,382,001.20

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Solution

The fourth proportional to 871,056,193.20, 1,306,584,289.80 and 386,382,001.20 is: 579,573,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,056,193.20 : 1,306,584,289.80 = 386,382,001.20 : x
  2. Step 2: Convert to fraction form
    871,056,193.20/1,306,584,289.80 = 386,382,001.20/x
  3. Step 3: Cross multiply
    871,056,193.20x = 1,306,584,289.80 × 386,382,001.20
  4. Step 4: Simplify right side
    871,056,193.20x = 504,840,652,629,404,736
  5. Step 5: Solve for x
    x = 504,840,652,629,404,736/871,056,193.20
  6. Step 6: Final answer
    x = 579,573,001.80

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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.