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Finding the Fourth Proportional to 541,363.20, 747,278.13 and 315,008.70

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Solution

The fourth proportional to 541,363.20, 747,278.13 and 315,008.70 is: 434,826.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,363.20 : 747,278.13 = 315,008.70 : x
  2. Step 2: Convert to fraction form
    541,363.20/747,278.13 = 315,008.70/x
  3. Step 3: Cross multiply
    541,363.20x = 747,278.13 × 315,008.70
  4. Step 4: Simplify right side
    541,363.20x = 235,399,112,269.73
  5. Step 5: Solve for x
    x = 235,399,112,269.73/541,363.20
  6. Step 6: Final answer
    x = 434,826.59

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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.