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Finding the Fourth Proportional to 591,523.20, 887,284.80 and 355,132.80

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Solution

The fourth proportional to 591,523.20, 887,284.80 and 355,132.80 is: 532,699.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,523.20 : 887,284.80 = 355,132.80 : x
  2. Step 2: Convert to fraction form
    591,523.20/887,284.80 = 355,132.80/x
  3. Step 3: Cross multiply
    591,523.20x = 887,284.80 × 355,132.80
  4. Step 4: Simplify right side
    591,523.20x = 315,103,935,421.44
  5. Step 5: Solve for x
    x = 315,103,935,421.44/591,523.20
  6. Step 6: Final answer
    x = 532,699.20

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Double scale
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Similar ratio
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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.