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Finding the Fourth Proportional to 461,458.34, 636,812.53 and 254,726.78

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Solution

The fourth proportional to 461,458.34, 636,812.53 and 254,726.78 is: 351,522.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,458.34 : 636,812.53 = 254,726.78 : x
  2. Step 2: Convert to fraction form
    461,458.34/636,812.53 = 254,726.78/x
  3. Step 3: Cross multiply
    461,458.34x = 636,812.53 × 254,726.78
  4. Step 4: Simplify right side
    461,458.34x = 162,213,203,320.11
  5. Step 5: Solve for x
    x = 162,213,203,320.11/461,458.34
  6. Step 6: Final answer
    x = 351,522.97

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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.