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Finding the Fourth Proportional to 493,947.72, 681,646.86 and 267,593.76

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Solution

The fourth proportional to 493,947.72, 681,646.86 and 267,593.76 is: 369,278.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,947.72 : 681,646.86 = 267,593.76 : x
  2. Step 2: Convert to fraction form
    493,947.72/681,646.86 = 267,593.76/x
  3. Step 3: Cross multiply
    493,947.72x = 681,646.86 × 267,593.76
  4. Step 4: Simplify right side
    493,947.72x = 182,404,446,259.59
  5. Step 5: Solve for x
    x = 182,404,446,259.59/493,947.72
  6. Step 6: Final answer
    x = 369,278.85

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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.