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Finding the Fourth Proportional to 544,048.60, 815,276.10 and 487,888.60

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Solution

The fourth proportional to 544,048.60, 815,276.10 and 487,888.60 is: 731,118.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,048.60 : 815,276.10 = 487,888.60 : x
  2. Step 2: Convert to fraction form
    544,048.60/815,276.10 = 487,888.60/x
  3. Step 3: Cross multiply
    544,048.60x = 815,276.10 × 487,888.60
  4. Step 4: Simplify right side
    544,048.60x = 397,763,915,042.46
  5. Step 5: Solve for x
    x = 397,763,915,042.46/544,048.60
  6. Step 6: Final answer
    x = 731,118.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.