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Finding the Fourth Proportional to 461,388.44, 636,607.38 and 280,095.80

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Solution

The fourth proportional to 461,388.44, 636,607.38 and 280,095.80 is: 386,466.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,388.44 : 636,607.38 = 280,095.80 : x
  2. Step 2: Convert to fraction form
    461,388.44/636,607.38 = 280,095.80/x
  3. Step 3: Cross multiply
    461,388.44x = 636,607.38 × 280,095.80
  4. Step 4: Simplify right side
    461,388.44x = 178,311,053,387.00
  5. Step 5: Solve for x
    x = 178,311,053,387.00/461,388.44
  6. Step 6: Final answer
    x = 386,466.24

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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.