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Finding the Fourth Proportional to 538,805.20, 807,862.20 and 223,387.60

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Solution

The fourth proportional to 538,805.20, 807,862.20 and 223,387.60 is: 334,938.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,805.20 : 807,862.20 = 223,387.60 : x
  2. Step 2: Convert to fraction form
    538,805.20/807,862.20 = 223,387.60/x
  3. Step 3: Cross multiply
    538,805.20x = 807,862.20 × 223,387.60
  4. Step 4: Simplify right side
    538,805.20x = 180,466,397,988.72
  5. Step 5: Solve for x
    x = 180,466,397,988.72/538,805.20
  6. Step 6: Final answer
    x = 334,938.11

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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.