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Finding the Fourth Proportional to 624,700.20, 936,773.28 and 287,659.20

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Solution

The fourth proportional to 624,700.20, 936,773.28 and 287,659.20 is: 431,361.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,700.20 : 936,773.28 = 287,659.20 : x
  2. Step 2: Convert to fraction form
    624,700.20/936,773.28 = 287,659.20/x
  3. Step 3: Cross multiply
    624,700.20x = 936,773.28 × 287,659.20
  4. Step 4: Simplify right side
    624,700.20x = 269,471,452,306.18
  5. Step 5: Solve for x
    x = 269,471,452,306.18/624,700.20
  6. Step 6: Final answer
    x = 431,361.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.