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Finding the Fourth Proportional to 257,576.20, 386,364.30 and 244,454.20

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Solution

The fourth proportional to 257,576.20, 386,364.30 and 244,454.20 is: 366,681.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,576.20 : 386,364.30 = 244,454.20 : x
  2. Step 2: Convert to fraction form
    257,576.20/386,364.30 = 244,454.20/x
  3. Step 3: Cross multiply
    257,576.20x = 386,364.30 × 244,454.20
  4. Step 4: Simplify right side
    257,576.20x = 94,448,375,865.06
  5. Step 5: Solve for x
    x = 94,448,375,865.06/257,576.20
  6. Step 6: Final answer
    x = 366,681.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.