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Finding the Fourth Proportional to 625,681.53, 862,981.90 and 410,743.17

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Solution

The fourth proportional to 625,681.53, 862,981.90 and 410,743.17 is: 566,524.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,681.53 : 862,981.90 = 410,743.17 : x
  2. Step 2: Convert to fraction form
    625,681.53/862,981.90 = 410,743.17/x
  3. Step 3: Cross multiply
    625,681.53x = 862,981.90 × 410,743.17
  4. Step 4: Simplify right side
    625,681.53x = 354,463,920,231.77
  5. Step 5: Solve for x
    x = 354,463,920,231.77/625,681.53
  6. Step 6: Final answer
    x = 566,524.51

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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.