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Finding the Fourth Proportional to 368,579.85, 508,797.13 and 247,791.19

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Solution

The fourth proportional to 368,579.85, 508,797.13 and 247,791.19 is: 342,057.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,579.85 : 508,797.13 = 247,791.19 : x
  2. Step 2: Convert to fraction form
    368,579.85/508,797.13 = 247,791.19/x
  3. Step 3: Cross multiply
    368,579.85x = 508,797.13 × 247,791.19
  4. Step 4: Simplify right side
    368,579.85x = 126,075,446,311.29
  5. Step 5: Solve for x
    x = 126,075,446,311.29/368,579.85
  6. Step 6: Final answer
    x = 342,057.35

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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.