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Finding the Fourth Proportional to 659,552.40, 991,515.60 and 572,947.20

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Solution

The fourth proportional to 659,552.40, 991,515.60 and 572,947.20 is: 861,320.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,552.40 : 991,515.60 = 572,947.20 : x
  2. Step 2: Convert to fraction form
    659,552.40/991,515.60 = 572,947.20/x
  3. Step 3: Cross multiply
    659,552.40x = 991,515.60 × 572,947.20
  4. Step 4: Simplify right side
    659,552.40x = 568,086,086,776.32
  5. Step 5: Solve for x
    x = 568,086,086,776.32/659,552.40
  6. Step 6: Final answer
    x = 861,320.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.