Home / 539,096,947.90-808,645,421.85-517,933,786.30

Finding the Fourth Proportional to 539,096,947.90, 808,645,421.85 and 517,933,786.30

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Solution

The fourth proportional to 539,096,947.90, 808,645,421.85 and 517,933,786.30 is: 776,900,679.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,096,947.90 : 808,645,421.85 = 517,933,786.30 : x
  2. Step 2: Convert to fraction form
    539,096,947.90/808,645,421.85 = 517,933,786.30/x
  3. Step 3: Cross multiply
    539,096,947.90x = 808,645,421.85 × 517,933,786.30
  4. Step 4: Simplify right side
    539,096,947.90x = 418,824,785,112,931,264
  5. Step 5: Solve for x
    x = 418,824,785,112,931,264/539,096,947.90
  6. Step 6: Final answer
    x = 776,900,679.45

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Double scale
Find fourth proportional to 539,096,948.90, 808,645,423.35 and 517,933,787.30
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.