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Finding the Fourth Proportional to 484,468.40, 727,134.60 and 284,538.80

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Solution

The fourth proportional to 484,468.40, 727,134.60 and 284,538.80 is: 427,061.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,468.40 : 727,134.60 = 284,538.80 : x
  2. Step 2: Convert to fraction form
    484,468.40/727,134.60 = 284,538.80/x
  3. Step 3: Cross multiply
    484,468.40x = 727,134.60 × 284,538.80
  4. Step 4: Simplify right side
    484,468.40x = 206,898,006,522.48
  5. Step 5: Solve for x
    x = 206,898,006,522.48/484,468.40
  6. Step 6: Final answer
    x = 427,061.92

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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.