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Finding the Fourth Proportional to 573,617.76, 791,611.68 and 315,505.59

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Solution

The fourth proportional to 573,617.76, 791,611.68 and 315,505.59 is: 435,408.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,617.76 : 791,611.68 = 315,505.59 : x
  2. Step 2: Convert to fraction form
    573,617.76/791,611.68 = 315,505.59/x
  3. Step 3: Cross multiply
    573,617.76x = 791,611.68 × 315,505.59
  4. Step 4: Simplify right side
    573,617.76x = 249,757,910,149.29
  5. Step 5: Solve for x
    x = 249,757,910,149.29/573,617.76
  6. Step 6: Final answer
    x = 435,408.26

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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.