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Finding the Fourth Proportional to 573,245.52, 791,111.56 and 318,612.84

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Solution

The fourth proportional to 573,245.52, 791,111.56 and 318,612.84 is: 439,703.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,245.52 : 791,111.56 = 318,612.84 : x
  2. Step 2: Convert to fraction form
    573,245.52/791,111.56 = 318,612.84/x
  3. Step 3: Cross multiply
    573,245.52x = 791,111.56 × 318,612.84
  4. Step 4: Simplify right side
    573,245.52x = 252,058,300,888.43
  5. Step 5: Solve for x
    x = 252,058,300,888.43/573,245.52
  6. Step 6: Final answer
    x = 439,703.92

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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.