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Finding the Fourth Proportional to 539,728.87, 744,811.65 and 298,006.24

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Solution

The fourth proportional to 539,728.87, 744,811.65 and 298,006.24 is: 411,240.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,728.87 : 744,811.65 = 298,006.24 : x
  2. Step 2: Convert to fraction form
    539,728.87/744,811.65 = 298,006.24/x
  3. Step 3: Cross multiply
    539,728.87x = 744,811.65 × 298,006.24
  4. Step 4: Simplify right side
    539,728.87x = 221,958,519,324.70
  5. Step 5: Solve for x
    x = 221,958,519,324.70/539,728.87
  6. Step 6: Final answer
    x = 411,240.78

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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.