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Finding the Fourth Proportional to 501,796.70, 752,293.64 and 261,790.16

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Solution

The fourth proportional to 501,796.70, 752,293.64 and 261,790.16 is: 392,475.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,796.70 : 752,293.64 = 261,790.16 : x
  2. Step 2: Convert to fraction form
    501,796.70/752,293.64 = 261,790.16/x
  3. Step 3: Cross multiply
    501,796.70x = 752,293.64 × 261,790.16
  4. Step 4: Simplify right side
    501,796.70x = 196,943,073,507.24
  5. Step 5: Solve for x
    x = 196,943,073,507.24/501,796.70
  6. Step 6: Final answer
    x = 392,475.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.