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Finding the Fourth Proportional to 479,435.78, 718,648.07 and 159,501.96

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Solution

The fourth proportional to 479,435.78, 718,648.07 and 159,501.96 is: 239,084.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,435.78 : 718,648.07 = 159,501.96 : x
  2. Step 2: Convert to fraction form
    479,435.78/718,648.07 = 159,501.96/x
  3. Step 3: Cross multiply
    479,435.78x = 718,648.07 × 159,501.96
  4. Step 4: Simplify right side
    479,435.78x = 114,625,774,917.71
  5. Step 5: Solve for x
    x = 114,625,774,917.71/479,435.78
  6. Step 6: Final answer
    x = 239,084.73

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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.