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Finding the Fourth Proportional to 461,115.70, 636,388.59 and 270,289.42

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Solution

The fourth proportional to 461,115.70, 636,388.59 and 270,289.42 is: 373,028.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,115.70 : 636,388.59 = 270,289.42 : x
  2. Step 2: Convert to fraction form
    461,115.70/636,388.59 = 270,289.42/x
  3. Step 3: Cross multiply
    461,115.70x = 636,388.59 × 270,289.42
  4. Step 4: Simplify right side
    461,115.70x = 172,009,102,885.72
  5. Step 5: Solve for x
    x = 172,009,102,885.72/461,115.70
  6. Step 6: Final answer
    x = 373,028.08

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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.