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Finding the Fourth Proportional to 407,092.56, 610,640.40 and 170,269.11

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Solution

The fourth proportional to 407,092.56, 610,640.40 and 170,269.11 is: 255,404.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,092.56 : 610,640.40 = 170,269.11 : x
  2. Step 2: Convert to fraction form
    407,092.56/610,640.40 = 170,269.11/x
  3. Step 3: Cross multiply
    407,092.56x = 610,640.40 × 170,269.11
  4. Step 4: Simplify right side
    407,092.56x = 103,973,197,438.04
  5. Step 5: Solve for x
    x = 103,973,197,438.04/407,092.56
  6. Step 6: Final answer
    x = 255,404.32

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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.