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Finding the Fourth Proportional to 399,063.40, 597,788.70 and 248,842.60

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Solution

The fourth proportional to 399,063.40, 597,788.70 and 248,842.60 is: 372,761.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,063.40 : 597,788.70 = 248,842.60 : x
  2. Step 2: Convert to fraction form
    399,063.40/597,788.70 = 248,842.60/x
  3. Step 3: Cross multiply
    399,063.40x = 597,788.70 × 248,842.60
  4. Step 4: Simplify right side
    399,063.40x = 148,755,294,358.62
  5. Step 5: Solve for x
    x = 148,755,294,358.62/399,063.40
  6. Step 6: Final answer
    x = 372,761.06

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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.