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Finding the Fourth Proportional to 567,691.20, 851,536.80 and 545,918.40

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Solution

The fourth proportional to 567,691.20, 851,536.80 and 545,918.40 is: 818,877.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,691.20 : 851,536.80 = 545,918.40 : x
  2. Step 2: Convert to fraction form
    567,691.20/851,536.80 = 545,918.40/x
  3. Step 3: Cross multiply
    567,691.20x = 851,536.80 × 545,918.40
  4. Step 4: Simplify right side
    567,691.20x = 464,869,607,397.12
  5. Step 5: Solve for x
    x = 464,869,607,397.12/567,691.20
  6. Step 6: Final answer
    x = 818,877.60

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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.