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Finding the Fourth Proportional to 591,909.20, 887,928.60 and 573,246.80

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Solution

The fourth proportional to 591,909.20, 887,928.60 and 573,246.80 is: 859,932.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,909.20 : 887,928.60 = 573,246.80 : x
  2. Step 2: Convert to fraction form
    591,909.20/887,928.60 = 573,246.80/x
  3. Step 3: Cross multiply
    591,909.20x = 887,928.60 × 573,246.80
  4. Step 4: Simplify right side
    591,909.20x = 509,002,228,578.48
  5. Step 5: Solve for x
    x = 509,002,228,578.48/591,909.20
  6. Step 6: Final answer
    x = 859,932.96

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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.