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Finding the Fourth Proportional to 560,675.76, 773,660.19 and 315,629.56

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Solution

The fourth proportional to 560,675.76, 773,660.19 and 315,629.56 is: 435,528.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,675.76 : 773,660.19 = 315,629.56 : x
  2. Step 2: Convert to fraction form
    560,675.76/773,660.19 = 315,629.56/x
  3. Step 3: Cross multiply
    560,675.76x = 773,660.19 × 315,629.56
  4. Step 4: Simplify right side
    560,675.76x = 244,190,025,359.22
  5. Step 5: Solve for x
    x = 244,190,025,359.22/560,675.76
  6. Step 6: Final answer
    x = 435,528.06

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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.