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Finding the Fourth Proportional to 435,376.80, 652,190.40 and 248,169.60

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Solution

The fourth proportional to 435,376.80, 652,190.40 and 248,169.60 is: 371,755.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,376.80 : 652,190.40 = 248,169.60 : x
  2. Step 2: Convert to fraction form
    435,376.80/652,190.40 = 248,169.60/x
  3. Step 3: Cross multiply
    435,376.80x = 652,190.40 × 248,169.60
  4. Step 4: Simplify right side
    435,376.80x = 161,853,830,691.84
  5. Step 5: Solve for x
    x = 161,853,830,691.84/435,376.80
  6. Step 6: Final answer
    x = 371,755.75

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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.