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Finding the Fourth Proportional to 468,023.28, 645,870.28 and 253,163.92

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Solution

The fourth proportional to 468,023.28, 645,870.28 and 253,163.92 is: 349,365.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,023.28 : 645,870.28 = 253,163.92 : x
  2. Step 2: Convert to fraction form
    468,023.28/645,870.28 = 253,163.92/x
  3. Step 3: Cross multiply
    468,023.28x = 645,870.28 × 253,163.92
  4. Step 4: Simplify right side
    468,023.28x = 163,511,051,896.30
  5. Step 5: Solve for x
    x = 163,511,051,896.30/468,023.28
  6. Step 6: Final answer
    x = 349,365.21

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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.