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Finding the Fourth Proportional to 573,023.49, 790,758.23 and 318,375.29

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Solution

The fourth proportional to 573,023.49, 790,758.23 and 318,375.29 is: 439,350.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,023.49 : 790,758.23 = 318,375.29 : x
  2. Step 2: Convert to fraction form
    573,023.49/790,758.23 = 318,375.29/x
  3. Step 3: Cross multiply
    573,023.49x = 790,758.23 × 318,375.29
  4. Step 4: Simplify right side
    573,023.49x = 251,757,875,250.47
  5. Step 5: Solve for x
    x = 251,757,875,250.47/573,023.49
  6. Step 6: Final answer
    x = 439,350.01

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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.