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Finding the Fourth Proportional to 666,576.92, 919,872.42 and 360,652.52

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Solution

The fourth proportional to 666,576.92, 919,872.42 and 360,652.52 is: 497,698.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,576.92 : 919,872.42 = 360,652.52 : x
  2. Step 2: Convert to fraction form
    666,576.92/919,872.42 = 360,652.52/x
  3. Step 3: Cross multiply
    666,576.92x = 919,872.42 × 360,652.52
  4. Step 4: Simplify right side
    666,576.92x = 331,754,306,351.50
  5. Step 5: Solve for x
    x = 331,754,306,351.50/666,576.92
  6. Step 6: Final answer
    x = 497,698.46

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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.