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Finding the Fourth Proportional to 560,718.15, 773,764.02 and 318,977.97

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Solution

The fourth proportional to 560,718.15, 773,764.02 and 318,977.97 is: 440,174.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,718.15 : 773,764.02 = 318,977.97 : x
  2. Step 2: Convert to fraction form
    560,718.15/773,764.02 = 318,977.97/x
  3. Step 3: Cross multiply
    560,718.15x = 773,764.02 × 318,977.97
  4. Step 4: Simplify right side
    560,718.15x = 246,813,676,358.64
  5. Step 5: Solve for x
    x = 246,813,676,358.64/560,718.15
  6. Step 6: Final answer
    x = 440,174.22

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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.