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Finding the Fourth Proportional to 539,512.80, 744,545.70 and 294,512.10

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Solution

The fourth proportional to 539,512.80, 744,545.70 and 294,512.10 is: 406,436.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,512.80 : 744,545.70 = 294,512.10 : x
  2. Step 2: Convert to fraction form
    539,512.80/744,545.70 = 294,512.10/x
  3. Step 3: Cross multiply
    539,512.80x = 744,545.70 × 294,512.10
  4. Step 4: Simplify right side
    539,512.80x = 219,277,717,652.97
  5. Step 5: Solve for x
    x = 219,277,717,652.97/539,512.80
  6. Step 6: Final answer
    x = 406,436.54

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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.