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Finding the Fourth Proportional to 573,739.20, 791,755.73 and 315,610.59

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Solution

The fourth proportional to 573,739.20, 791,755.73 and 315,610.59 is: 435,540.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,739.20 : 791,755.73 = 315,610.59 : x
  2. Step 2: Convert to fraction form
    573,739.20/791,755.73 = 315,610.59/x
  3. Step 3: Cross multiply
    573,739.20x = 791,755.73 × 315,610.59
  4. Step 4: Simplify right side
    573,739.20x = 249,886,495,655.75
  5. Step 5: Solve for x
    x = 249,886,495,655.75/573,739.20
  6. Step 6: Final answer
    x = 435,540.22

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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.