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Finding the Fourth Proportional to 573,550.92, 791,495.47 and 318,899.88

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Solution

The fourth proportional to 573,550.92, 791,495.47 and 318,899.88 is: 440,079.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,550.92 : 791,495.47 = 318,899.88 : x
  2. Step 2: Convert to fraction form
    573,550.92/791,495.47 = 318,899.88/x
  3. Step 3: Cross multiply
    573,550.92x = 791,495.47 × 318,899.88
  4. Step 4: Simplify right side
    573,550.92x = 252,407,804,851.57
  5. Step 5: Solve for x
    x = 252,407,804,851.57/573,550.92
  6. Step 6: Final answer
    x = 440,079.16

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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.