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Finding the Fourth Proportional to 573,680.18, 791,646.14 and 319,025.90

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Solution

The fourth proportional to 573,680.18, 791,646.14 and 319,025.90 is: 440,237.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,680.18 : 791,646.14 = 319,025.90 : x
  2. Step 2: Convert to fraction form
    573,680.18/791,646.14 = 319,025.90/x
  3. Step 3: Cross multiply
    573,680.18x = 791,646.14 × 319,025.90
  4. Step 4: Simplify right side
    573,680.18x = 252,555,622,295.03
  5. Step 5: Solve for x
    x = 252,555,622,295.03/573,680.18
  6. Step 6: Final answer
    x = 440,237.66

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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.