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Finding the Fourth Proportional to 624,859.43, 862,306.85 and 338,380.01

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Solution

The fourth proportional to 624,859.43, 862,306.85 and 338,380.01 is: 466,964.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,859.43 : 862,306.85 = 338,380.01 : x
  2. Step 2: Convert to fraction form
    624,859.43/862,306.85 = 338,380.01/x
  3. Step 3: Cross multiply
    624,859.43x = 862,306.85 × 338,380.01
  4. Step 4: Simplify right side
    624,859.43x = 291,787,400,526.07
  5. Step 5: Solve for x
    x = 291,787,400,526.07/624,859.43
  6. Step 6: Final answer
    x = 466,964.87

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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.