Home / 688,246.71-949,932.26-382,428.17

Finding the Fourth Proportional to 688,246.71, 949,932.26 and 382,428.17

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Solution

The fourth proportional to 688,246.71, 949,932.26 and 382,428.17 is: 527,835.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,246.71 : 949,932.26 = 382,428.17 : x
  2. Step 2: Convert to fraction form
    688,246.71/949,932.26 = 382,428.17/x
  3. Step 3: Cross multiply
    688,246.71x = 949,932.26 × 382,428.17
  4. Step 4: Simplify right side
    688,246.71x = 363,280,854,150.31
  5. Step 5: Solve for x
    x = 363,280,854,150.31/688,246.71
  6. Step 6: Final answer
    x = 527,835.22

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.