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Finding the Fourth Proportional to 479,273.76, 718,385.76 and 242,290.44

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Solution

The fourth proportional to 479,273.76, 718,385.76 and 242,290.44 is: 363,170.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,273.76 : 718,385.76 = 242,290.44 : x
  2. Step 2: Convert to fraction form
    479,273.76/718,385.76 = 242,290.44/x
  3. Step 3: Cross multiply
    479,273.76x = 718,385.76 × 242,290.44
  4. Step 4: Simplify right side
    479,273.76x = 174,058,001,880.13
  5. Step 5: Solve for x
    x = 174,058,001,880.13/479,273.76
  6. Step 6: Final answer
    x = 363,170.31

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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.