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Finding the Fourth Proportional to 560,346.50, 773,274.51 and 318,629.09

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Solution

The fourth proportional to 560,346.50, 773,274.51 and 318,629.09 is: 439,706.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,346.50 : 773,274.51 = 318,629.09 : x
  2. Step 2: Convert to fraction form
    560,346.50/773,274.51 = 318,629.09/x
  3. Step 3: Cross multiply
    560,346.50x = 773,274.51 × 318,629.09
  4. Step 4: Simplify right side
    560,346.50x = 246,387,755,374.68
  5. Step 5: Solve for x
    x = 246,387,755,374.68/560,346.50
  6. Step 6: Final answer
    x = 439,706.06

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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.