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Finding the Fourth Proportional to 528,366.66, 729,214.77 and 295,882.14

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Solution

The fourth proportional to 528,366.66, 729,214.77 and 295,882.14 is: 408,355.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,366.66 : 729,214.77 = 295,882.14 : x
  2. Step 2: Convert to fraction form
    528,366.66/729,214.77 = 295,882.14/x
  3. Step 3: Cross multiply
    528,366.66x = 729,214.77 × 295,882.14
  4. Step 4: Simplify right side
    528,366.66x = 215,761,625,557.65
  5. Step 5: Solve for x
    x = 215,761,625,557.65/528,366.66
  6. Step 6: Final answer
    x = 408,355.87

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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.