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Finding the Fourth Proportional to 495,201.54, 742,517.40 and 264,105.42

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Solution

The fourth proportional to 495,201.54, 742,517.40 and 264,105.42 is: 396,006.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,201.54 : 742,517.40 = 264,105.42 : x
  2. Step 2: Convert to fraction form
    495,201.54/742,517.40 = 264,105.42/x
  3. Step 3: Cross multiply
    495,201.54x = 742,517.40 × 264,105.42
  4. Step 4: Simplify right side
    495,201.54x = 196,102,869,784.31
  5. Step 5: Solve for x
    x = 196,102,869,784.31/495,201.54
  6. Step 6: Final answer
    x = 396,006.18

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Why These Related Problems?

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