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Finding the Fourth Proportional to 573,136.40, 859,704.60 and 527,646.80

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Solution

The fourth proportional to 573,136.40, 859,704.60 and 527,646.80 is: 791,470.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,136.40 : 859,704.60 = 527,646.80 : x
  2. Step 2: Convert to fraction form
    573,136.40/859,704.60 = 527,646.80/x
  3. Step 3: Cross multiply
    573,136.40x = 859,704.60 × 527,646.80
  4. Step 4: Simplify right side
    573,136.40x = 453,620,381,135.28
  5. Step 5: Solve for x
    x = 453,620,381,135.28/573,136.40
  6. Step 6: Final answer
    x = 791,470.20

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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.