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Finding the Fourth Proportional to 328,400.45, 453,218.29 and 183,251.87

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Solution

The fourth proportional to 328,400.45, 453,218.29 and 183,251.87 is: 252,901.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,400.45 : 453,218.29 = 183,251.87 : x
  2. Step 2: Convert to fraction form
    328,400.45/453,218.29 = 183,251.87/x
  3. Step 3: Cross multiply
    328,400.45x = 453,218.29 × 183,251.87
  4. Step 4: Simplify right side
    328,400.45x = 83,053,096,894.61
  5. Step 5: Solve for x
    x = 83,053,096,894.61/328,400.45
  6. Step 6: Final answer
    x = 252,901.90

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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.