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Finding the Fourth Proportional to 625,284.18, 862,908.24 and 383,700.24

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Solution

The fourth proportional to 625,284.18, 862,908.24 and 383,700.24 is: 529,516.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,284.18 : 862,908.24 = 383,700.24 : x
  2. Step 2: Convert to fraction form
    625,284.18/862,908.24 = 383,700.24/x
  3. Step 3: Cross multiply
    625,284.18x = 862,908.24 × 383,700.24
  4. Step 4: Simplify right side
    625,284.18x = 331,098,098,785.98
  5. Step 5: Solve for x
    x = 331,098,098,785.98/625,284.18
  6. Step 6: Final answer
    x = 529,516.19

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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.