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Finding the Fourth Proportional to 336,644.45, 464,149.14 and 215,586.71

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Solution

The fourth proportional to 336,644.45, 464,149.14 and 215,586.71 is: 297,240.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,644.45 : 464,149.14 = 215,586.71 : x
  2. Step 2: Convert to fraction form
    336,644.45/464,149.14 = 215,586.71/x
  3. Step 3: Cross multiply
    336,644.45x = 464,149.14 × 215,586.71
  4. Step 4: Simplify right side
    336,644.45x = 100,064,386,041.93
  5. Step 5: Solve for x
    x = 100,064,386,041.93/336,644.45
  6. Step 6: Final answer
    x = 297,240.56

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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.