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Finding the Fourth Proportional to 415,364.60, 573,309.80 and 270,531.29

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Solution

The fourth proportional to 415,364.60, 573,309.80 and 270,531.29 is: 373,402.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,364.60 : 573,309.80 = 270,531.29 : x
  2. Step 2: Convert to fraction form
    415,364.60/573,309.80 = 270,531.29/x
  3. Step 3: Cross multiply
    415,364.60x = 573,309.80 × 270,531.29
  4. Step 4: Simplify right side
    415,364.60x = 155,098,235,544.44
  5. Step 5: Solve for x
    x = 155,098,235,544.44/415,364.60
  6. Step 6: Final answer
    x = 373,402.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.