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Finding the Fourth Proportional to 532,665.22, 735,077.18 and 290,947.79

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Solution

The fourth proportional to 532,665.22, 735,077.18 and 290,947.79 is: 401,507.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,665.22 : 735,077.18 = 290,947.79 : x
  2. Step 2: Convert to fraction form
    532,665.22/735,077.18 = 290,947.79/x
  3. Step 3: Cross multiply
    532,665.22x = 735,077.18 × 290,947.79
  4. Step 4: Simplify right side
    532,665.22x = 213,869,079,545.69
  5. Step 5: Solve for x
    x = 213,869,079,545.69/532,665.22
  6. Step 6: Final answer
    x = 401,507.50

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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.