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Finding the Fourth Proportional to 567,918.40, 851,877.60 and 426,200.80

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Solution

The fourth proportional to 567,918.40, 851,877.60 and 426,200.80 is: 639,301.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,918.40 : 851,877.60 = 426,200.80 : x
  2. Step 2: Convert to fraction form
    567,918.40/851,877.60 = 426,200.80/x
  3. Step 3: Cross multiply
    567,918.40x = 851,877.60 × 426,200.80
  4. Step 4: Simplify right side
    567,918.40x = 363,070,914,622.08
  5. Step 5: Solve for x
    x = 363,070,914,622.08/567,918.40
  6. Step 6: Final answer
    x = 639,301.20

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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.