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Finding the Fourth Proportional to 523,136.75, 782,665.63 and 458,582.44

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Solution

The fourth proportional to 523,136.75, 782,665.63 and 458,582.44 is: 686,085.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,136.75 : 782,665.63 = 458,582.44 : x
  2. Step 2: Convert to fraction form
    523,136.75/782,665.63 = 458,582.44/x
  3. Step 3: Cross multiply
    523,136.75x = 782,665.63 × 458,582.44
  4. Step 4: Simplify right side
    523,136.75x = 358,916,712,926.10
  5. Step 5: Solve for x
    x = 358,916,712,926.10/523,136.75
  6. Step 6: Final answer
    x = 686,085.83

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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.