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Finding the Fourth Proportional to 573,449.37, 791,380.48 and 315,346.11

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Solution

The fourth proportional to 573,449.37, 791,380.48 and 315,346.11 is: 435,188.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,449.37 : 791,380.48 = 315,346.11 : x
  2. Step 2: Convert to fraction form
    573,449.37/791,380.48 = 315,346.11/x
  3. Step 3: Cross multiply
    573,449.37x = 791,380.48 × 315,346.11
  4. Step 4: Simplify right side
    573,449.37x = 249,558,755,897.93
  5. Step 5: Solve for x
    x = 249,558,755,897.93/573,449.37
  6. Step 6: Final answer
    x = 435,188.82

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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.