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Finding the Fourth Proportional to 573,550.29, 791,494.61 and 318,899.25

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Solution

The fourth proportional to 573,550.29, 791,494.61 and 318,899.25 is: 440,078.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,550.29 : 791,494.61 = 318,899.25 : x
  2. Step 2: Convert to fraction form
    573,550.29/791,494.61 = 318,899.25/x
  3. Step 3: Cross multiply
    573,550.29x = 791,494.61 × 318,899.25
  4. Step 4: Simplify right side
    573,550.29x = 252,407,035,913.55
  5. Step 5: Solve for x
    x = 252,407,035,913.55/573,550.29
  6. Step 6: Final answer
    x = 440,078.30

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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.