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Finding the Fourth Proportional to 451,103.60, 622,589.28 and 260,079.68

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Solution

The fourth proportional to 451,103.60, 622,589.28 and 260,079.68 is: 358,948.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,103.60 : 622,589.28 = 260,079.68 : x
  2. Step 2: Convert to fraction form
    451,103.60/622,589.28 = 260,079.68/x
  3. Step 3: Cross multiply
    451,103.60x = 622,589.28 × 260,079.68
  4. Step 4: Simplify right side
    451,103.60x = 161,922,820,713.83
  5. Step 5: Solve for x
    x = 161,922,820,713.83/451,103.60
  6. Step 6: Final answer
    x = 358,948.19

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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.