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Finding the Fourth Proportional to 688,500.71, 950,112.12 and 382,569.21

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Solution

The fourth proportional to 688,500.71, 950,112.12 and 382,569.21 is: 527,935.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,500.71 : 950,112.12 = 382,569.21 : x
  2. Step 2: Convert to fraction form
    688,500.71/950,112.12 = 382,569.21/x
  3. Step 3: Cross multiply
    688,500.71x = 950,112.12 × 382,569.21
  4. Step 4: Simplify right side
    688,500.71x = 363,483,645,912.81
  5. Step 5: Solve for x
    x = 363,483,645,912.81/688,500.71
  6. Step 6: Final answer
    x = 527,935.04

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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.