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Finding the Fourth Proportional to 574,559.20, 861,838.80 and 519,446.80

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Solution

The fourth proportional to 574,559.20, 861,838.80 and 519,446.80 is: 779,170.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,559.20 : 861,838.80 = 519,446.80 : x
  2. Step 2: Convert to fraction form
    574,559.20/861,838.80 = 519,446.80/x
  3. Step 3: Cross multiply
    574,559.20x = 861,838.80 × 519,446.80
  4. Step 4: Simplify right side
    574,559.20x = 447,679,406,775.84
  5. Step 5: Solve for x
    x = 447,679,406,775.84/574,559.20
  6. Step 6: Final answer
    x = 779,170.20

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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.