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Finding the Fourth Proportional to 467,873.34, 645,654.42 and 276,889.92

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Solution

The fourth proportional to 467,873.34, 645,654.42 and 276,889.92 is: 382,101.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,873.34 : 645,654.42 = 276,889.92 : x
  2. Step 2: Convert to fraction form
    467,873.34/645,654.42 = 276,889.92/x
  3. Step 3: Cross multiply
    467,873.34x = 645,654.42 × 276,889.92
  4. Step 4: Simplify right side
    467,873.34x = 178,775,200,701.45
  5. Step 5: Solve for x
    x = 178,775,200,701.45/467,873.34
  6. Step 6: Final answer
    x = 382,101.70

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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.