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Finding the Fourth Proportional to 544,063.60, 815,298.60 and 487,903.60

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Solution

The fourth proportional to 544,063.60, 815,298.60 and 487,903.60 is: 731,140.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,063.60 : 815,298.60 = 487,903.60 : x
  2. Step 2: Convert to fraction form
    544,063.60/815,298.60 = 487,903.60/x
  3. Step 3: Cross multiply
    544,063.60x = 815,298.60 × 487,903.60
  4. Step 4: Simplify right side
    544,063.60x = 397,787,122,014.96
  5. Step 5: Solve for x
    x = 397,787,122,014.96/544,063.60
  6. Step 6: Final answer
    x = 731,140.85

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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.