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Finding the Fourth Proportional to 354,081.62, 488,079.33 and 240,707.54

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Solution

The fourth proportional to 354,081.62, 488,079.33 and 240,707.54 is: 331,800.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,081.62 : 488,079.33 = 240,707.54 : x
  2. Step 2: Convert to fraction form
    354,081.62/488,079.33 = 240,707.54/x
  3. Step 3: Cross multiply
    354,081.62x = 488,079.33 × 240,707.54
  4. Step 4: Simplify right side
    354,081.62x = 117,484,374,849.15
  5. Step 5: Solve for x
    x = 117,484,374,849.15/354,081.62
  6. Step 6: Final answer
    x = 331,800.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.