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Finding the Fourth Proportional to 625,284.29, 862,908.30 and 383,700.37

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Solution

The fourth proportional to 625,284.29, 862,908.30 and 383,700.37 is: 529,516.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,284.29 : 862,908.30 = 383,700.37 : x
  2. Step 2: Convert to fraction form
    625,284.29/862,908.30 = 383,700.37/x
  3. Step 3: Cross multiply
    625,284.29x = 862,908.30 × 383,700.37
  4. Step 4: Simplify right side
    625,284.29x = 331,098,233,986.07
  5. Step 5: Solve for x
    x = 331,098,233,986.07/625,284.29
  6. Step 6: Final answer
    x = 529,516.32

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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.