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Finding the Fourth Proportional to 573,549.67, 791,493.74 and 318,898.63

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Solution

The fourth proportional to 573,549.67, 791,493.74 and 318,898.63 is: 440,077.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,549.67 : 791,493.74 = 318,898.63 : x
  2. Step 2: Convert to fraction form
    573,549.67/791,493.74 = 318,898.63/x
  3. Step 3: Cross multiply
    573,549.67x = 791,493.74 × 318,898.63
  4. Step 4: Simplify right side
    573,549.67x = 252,406,265,382.11
  5. Step 5: Solve for x
    x = 252,406,265,382.11/573,549.67
  6. Step 6: Final answer
    x = 440,077.43

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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.