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Finding the Fourth Proportional to 475,861.29, 656,730.71 and 261,043.21

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Solution

The fourth proportional to 475,861.29, 656,730.71 and 261,043.21 is: 360,262.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,861.29 : 656,730.71 = 261,043.21 : x
  2. Step 2: Convert to fraction form
    475,861.29/656,730.71 = 261,043.21/x
  3. Step 3: Cross multiply
    475,861.29x = 656,730.71 × 261,043.21
  4. Step 4: Simplify right side
    475,861.29x = 171,435,092,643.98
  5. Step 5: Solve for x
    x = 171,435,092,643.98/475,861.29
  6. Step 6: Final answer
    x = 360,262.74

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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.