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Finding the Fourth Proportional to 451,065.90, 622,470.89 and 247,124.05

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Solution

The fourth proportional to 451,065.90, 622,470.89 and 247,124.05 is: 341,031.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,065.90 : 622,470.89 = 247,124.05 : x
  2. Step 2: Convert to fraction form
    451,065.90/622,470.89 = 247,124.05/x
  3. Step 3: Cross multiply
    451,065.90x = 622,470.89 × 247,124.05
  4. Step 4: Simplify right side
    451,065.90x = 153,827,527,989.01
  5. Step 5: Solve for x
    x = 153,827,527,989.01/451,065.90
  6. Step 6: Final answer
    x = 341,031.16

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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.