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Finding the Fourth Proportional to 544,310.64, 750,040.89 and 421,054.20

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Solution

The fourth proportional to 544,310.64, 750,040.89 and 421,054.20 is: 580,197.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,310.64 : 750,040.89 = 421,054.20 : x
  2. Step 2: Convert to fraction form
    544,310.64/750,040.89 = 421,054.20/x
  3. Step 3: Cross multiply
    544,310.64x = 750,040.89 × 421,054.20
  4. Step 4: Simplify right side
    544,310.64x = 315,807,866,906.24
  5. Step 5: Solve for x
    x = 315,807,866,906.24/544,310.64
  6. Step 6: Final answer
    x = 580,197.86

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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.