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Finding the Fourth Proportional to 461,565.75, 636,458.60 and 300,121.41

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Solution

The fourth proportional to 461,565.75, 636,458.60 and 300,121.41 is: 413,841.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,565.75 : 636,458.60 = 300,121.41 : x
  2. Step 2: Convert to fraction form
    461,565.75/636,458.60 = 300,121.41/x
  3. Step 3: Cross multiply
    461,565.75x = 636,458.60 × 300,121.41
  4. Step 4: Simplify right side
    461,565.75x = 191,014,852,097.43
  5. Step 5: Solve for x
    x = 191,014,852,097.43/461,565.75
  6. Step 6: Final answer
    x = 413,841.04

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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.