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Finding the Fourth Proportional to 611,901.76, 844,188.24 and 451,138.72

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Solution

The fourth proportional to 611,901.76, 844,188.24 and 451,138.72 is: 622,397.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,901.76 : 844,188.24 = 451,138.72 : x
  2. Step 2: Convert to fraction form
    611,901.76/844,188.24 = 451,138.72/x
  3. Step 3: Cross multiply
    611,901.76x = 844,188.24 × 451,138.72
  4. Step 4: Simplify right side
    611,901.76x = 380,846,002,032.65
  5. Step 5: Solve for x
    x = 380,846,002,032.65/611,901.76
  6. Step 6: Final answer
    x = 622,397.30

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1.5x scale

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.