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Finding the Fourth Proportional to 467,402.54, 645,061.02 and 276,477.44

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Solution

The fourth proportional to 467,402.54, 645,061.02 and 276,477.44 is: 381,565.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,402.54 : 645,061.02 = 276,477.44 : x
  2. Step 2: Convert to fraction form
    467,402.54/645,061.02 = 276,477.44/x
  3. Step 3: Cross multiply
    467,402.54x = 645,061.02 × 276,477.44
  4. Step 4: Simplify right side
    467,402.54x = 178,344,819,453.39
  5. Step 5: Solve for x
    x = 178,344,819,453.39/467,402.54
  6. Step 6: Final answer
    x = 381,565.79

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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.