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Finding the Fourth Proportional to 478,651.92, 718,063.28 and 158,822.96

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Solution

The fourth proportional to 478,651.92, 718,063.28 and 158,822.96 is: 238,262.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,651.92 : 718,063.28 = 158,822.96 : x
  2. Step 2: Convert to fraction form
    478,651.92/718,063.28 = 158,822.96/x
  3. Step 3: Cross multiply
    478,651.92x = 718,063.28 × 158,822.96
  4. Step 4: Simplify right side
    478,651.92x = 114,044,935,596.91
  5. Step 5: Solve for x
    x = 114,044,935,596.91/478,651.92
  6. Step 6: Final answer
    x = 238,262.78

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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.