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Finding the Fourth Proportional to 475,958.47, 656,818.87 and 258,166.59

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Solution

The fourth proportional to 475,958.47, 656,818.87 and 258,166.59 is: 356,267.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,958.47 : 656,818.87 = 258,166.59 : x
  2. Step 2: Convert to fraction form
    475,958.47/656,818.87 = 258,166.59/x
  3. Step 3: Cross multiply
    475,958.47x = 656,818.87 × 258,166.59
  4. Step 4: Simplify right side
    475,958.47x = 169,568,687,915.55
  5. Step 5: Solve for x
    x = 169,568,687,915.55/475,958.47
  6. Step 6: Final answer
    x = 356,267.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.