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Finding the Fourth Proportional to 488,043.40, 731,481.90 and 251,264.20

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Solution

The fourth proportional to 488,043.40, 731,481.90 and 251,264.20 is: 376,596.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,043.40 : 731,481.90 = 251,264.20 : x
  2. Step 2: Convert to fraction form
    488,043.40/731,481.90 = 251,264.20/x
  3. Step 3: Cross multiply
    488,043.40x = 731,481.90 × 251,264.20
  4. Step 4: Simplify right side
    488,043.40x = 183,795,214,417.98
  5. Step 5: Solve for x
    x = 183,795,214,417.98/488,043.40
  6. Step 6: Final answer
    x = 376,596.05

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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.