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Finding the Fourth Proportional to 560,343.56, 773,242.62 and 318,684.92

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Solution

The fourth proportional to 560,343.56, 773,242.62 and 318,684.92 is: 439,767.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,343.56 : 773,242.62 = 318,684.92 : x
  2. Step 2: Convert to fraction form
    560,343.56/773,242.62 = 318,684.92/x
  3. Step 3: Cross multiply
    560,343.56x = 773,242.62 × 318,684.92
  4. Step 4: Simplify right side
    560,343.56x = 246,420,762,495.29
  5. Step 5: Solve for x
    x = 246,420,762,495.29/560,343.56
  6. Step 6: Final answer
    x = 439,767.28

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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.