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Finding the Fourth Proportional to 478,804.98, 718,229.34 and 179,207.85

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Solution

The fourth proportional to 478,804.98, 718,229.34 and 179,207.85 is: 268,819.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,804.98 : 718,229.34 = 179,207.85 : x
  2. Step 2: Convert to fraction form
    478,804.98/718,229.34 = 179,207.85/x
  3. Step 3: Cross multiply
    478,804.98x = 718,229.34 × 179,207.85
  4. Step 4: Simplify right side
    478,804.98x = 128,712,335,828.32
  5. Step 5: Solve for x
    x = 128,712,335,828.32/478,804.98
  6. Step 6: Final answer
    x = 268,819.96

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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.