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Finding the Fourth Proportional to 574,008.80, 861,013.20 and 512,007.35

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Solution

The fourth proportional to 574,008.80, 861,013.20 and 512,007.35 is: 768,011.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,008.80 : 861,013.20 = 512,007.35 : x
  2. Step 2: Convert to fraction form
    574,008.80/861,013.20 = 512,007.35/x
  3. Step 3: Cross multiply
    574,008.80x = 861,013.20 × 512,007.35
  4. Step 4: Simplify right side
    574,008.80x = 440,845,086,847.02
  5. Step 5: Solve for x
    x = 440,845,086,847.02/574,008.80
  6. Step 6: Final answer
    x = 768,011.03

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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.