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Finding the Fourth Proportional to 625,158.88, 937,738.27 and 288,099.81

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Solution

The fourth proportional to 625,158.88, 937,738.27 and 288,099.81 is: 432,149.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,158.88 : 937,738.27 = 288,099.81 : x
  2. Step 2: Convert to fraction form
    625,158.88/937,738.27 = 288,099.81/x
  3. Step 3: Cross multiply
    625,158.88x = 937,738.27 × 288,099.81
  4. Step 4: Simplify right side
    625,158.88x = 270,162,217,416.73
  5. Step 5: Solve for x
    x = 270,162,217,416.73/625,158.88
  6. Step 6: Final answer
    x = 432,149.69

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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.