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Finding the Fourth Proportional to 621,825.60, 932,738.40 and 574,132.80

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Solution

The fourth proportional to 621,825.60, 932,738.40 and 574,132.80 is: 861,199.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,825.60 : 932,738.40 = 574,132.80 : x
  2. Step 2: Convert to fraction form
    621,825.60/932,738.40 = 574,132.80/x
  3. Step 3: Cross multiply
    621,825.60x = 932,738.40 × 574,132.80
  4. Step 4: Simplify right side
    621,825.60x = 535,515,709,259.52
  5. Step 5: Solve for x
    x = 535,515,709,259.52/621,825.60
  6. Step 6: Final answer
    x = 861,199.20

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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.