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Finding the Fourth Proportional to 323,123.80, 484,685.70 and 256,201.60

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Solution

The fourth proportional to 323,123.80, 484,685.70 and 256,201.60 is: 384,302.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,123.80 : 484,685.70 = 256,201.60 : x
  2. Step 2: Convert to fraction form
    323,123.80/484,685.70 = 256,201.60/x
  3. Step 3: Cross multiply
    323,123.80x = 484,685.70 × 256,201.60
  4. Step 4: Simplify right side
    323,123.80x = 124,177,251,837.12
  5. Step 5: Solve for x
    x = 124,177,251,837.12/323,123.80
  6. Step 6: Final answer
    x = 384,302.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.