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Finding the Fourth Proportional to 532,136.70, 798,205.05 and 521,639.10

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Solution

The fourth proportional to 532,136.70, 798,205.05 and 521,639.10 is: 782,458.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,136.70 : 798,205.05 = 521,639.10 : x
  2. Step 2: Convert to fraction form
    532,136.70/798,205.05 = 521,639.10/x
  3. Step 3: Cross multiply
    532,136.70x = 798,205.05 × 521,639.10
  4. Step 4: Simplify right side
    532,136.70x = 416,374,963,897.46
  5. Step 5: Solve for x
    x = 416,374,963,897.46/532,136.70
  6. Step 6: Final answer
    x = 782,458.65

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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.