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Finding the Fourth Proportional to 513,160.61, 769,866.42 and 361,653.27

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Solution

The fourth proportional to 513,160.61, 769,866.42 and 361,653.27 is: 542,568.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,160.61 : 769,866.42 = 361,653.27 : x
  2. Step 2: Convert to fraction form
    513,160.61/769,866.42 = 361,653.27/x
  3. Step 3: Cross multiply
    513,160.61x = 769,866.42 × 361,653.27
  4. Step 4: Simplify right side
    513,160.61x = 278,424,708,256.19
  5. Step 5: Solve for x
    x = 278,424,708,256.19/513,160.61
  6. Step 6: Final answer
    x = 542,568.36

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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.