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Finding the Fourth Proportional to 519,327.11, 716,545.20 and 304,425.66

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Solution

The fourth proportional to 519,327.11, 716,545.20 and 304,425.66 is: 420,033.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,327.11 : 716,545.20 = 304,425.66 : x
  2. Step 2: Convert to fraction form
    519,327.11/716,545.20 = 304,425.66/x
  3. Step 3: Cross multiply
    519,327.11x = 716,545.20 × 304,425.66
  4. Step 4: Simplify right side
    519,327.11x = 218,134,744,080.66
  5. Step 5: Solve for x
    x = 218,134,744,080.66/519,327.11
  6. Step 6: Final answer
    x = 420,033.42

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1.5x scale

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.