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Finding the Fourth Proportional to 465,089.73, 641,861.06 and 261,154.22

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Solution

The fourth proportional to 465,089.73, 641,861.06 and 261,154.22 is: 360,413.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,089.73 : 641,861.06 = 261,154.22 : x
  2. Step 2: Convert to fraction form
    465,089.73/641,861.06 = 261,154.22/x
  3. Step 3: Cross multiply
    465,089.73x = 641,861.06 × 261,154.22
  4. Step 4: Simplify right side
    465,089.73x = 167,624,719,957.60
  5. Step 5: Solve for x
    x = 167,624,719,957.60/465,089.73
  6. Step 6: Final answer
    x = 360,413.72

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1.5x scale

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.