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Finding the Fourth Proportional to 627,008.64, 865,630.54 and 412,771.48

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Solution

The fourth proportional to 627,008.64, 865,630.54 and 412,771.48 is: 569,860.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,008.64 : 865,630.54 = 412,771.48 : x
  2. Step 2: Convert to fraction form
    627,008.64/865,630.54 = 412,771.48/x
  3. Step 3: Cross multiply
    627,008.64x = 865,630.54 × 412,771.48
  4. Step 4: Simplify right side
    627,008.64x = 357,307,599,129.00
  5. Step 5: Solve for x
    x = 357,307,599,129.00/627,008.64
  6. Step 6: Final answer
    x = 569,860.73

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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.