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Finding the Fourth Proportional to 417,136.55, 625,890.90 and 192,376.34

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Solution

The fourth proportional to 417,136.55, 625,890.90 and 192,376.34 is: 288,650.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,136.55 : 625,890.90 = 192,376.34 : x
  2. Step 2: Convert to fraction form
    417,136.55/625,890.90 = 192,376.34/x
  3. Step 3: Cross multiply
    417,136.55x = 625,890.90 × 192,376.34
  4. Step 4: Simplify right side
    417,136.55x = 120,406,600,581.31
  5. Step 5: Solve for x
    x = 120,406,600,581.31/417,136.55
  6. Step 6: Final answer
    x = 288,650.32

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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.