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Finding the Fourth Proportional to 417,479.60, 625,713.96 and 192,532.88

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Solution

The fourth proportional to 417,479.60, 625,713.96 and 192,532.88 is: 288,566.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,479.60 : 625,713.96 = 192,532.88 : x
  2. Step 2: Convert to fraction form
    417,479.60/625,713.96 = 192,532.88/x
  3. Step 3: Cross multiply
    417,479.60x = 625,713.96 × 192,532.88
  4. Step 4: Simplify right side
    417,479.60x = 120,470,510,775.01
  5. Step 5: Solve for x
    x = 120,470,510,775.01/417,479.60
  6. Step 6: Final answer
    x = 288,566.22

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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.