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Finding the Fourth Proportional to 417,148.92, 625,909.41 and 192,388.50

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Solution

The fourth proportional to 417,148.92, 625,909.41 and 192,388.50 is: 288,668.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,148.92 : 625,909.41 = 192,388.50 : x
  2. Step 2: Convert to fraction form
    417,148.92/625,909.41 = 192,388.50/x
  3. Step 3: Cross multiply
    417,148.92x = 625,909.41 × 192,388.50
  4. Step 4: Simplify right side
    417,148.92x = 120,417,772,525.79
  5. Step 5: Solve for x
    x = 120,417,772,525.79/417,148.92
  6. Step 6: Final answer
    x = 288,668.55

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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.