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Finding the Fourth Proportional to 622,964.64, 859,562.64 and 396,527.52

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Solution

The fourth proportional to 622,964.64, 859,562.64 and 396,527.52 is: 547,126.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,964.64 : 859,562.64 = 396,527.52 : x
  2. Step 2: Convert to fraction form
    622,964.64/859,562.64 = 396,527.52/x
  3. Step 3: Cross multiply
    622,964.64x = 859,562.64 × 396,527.52
  4. Step 4: Simplify right side
    622,964.64x = 340,840,241,923.85
  5. Step 5: Solve for x
    x = 340,840,241,923.85/622,964.64
  6. Step 6: Final answer
    x = 547,126.14

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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.