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Finding the Fourth Proportional to 465,484.92, 642,369.45 and 261,535.83

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Solution

The fourth proportional to 465,484.92, 642,369.45 and 261,535.83 is: 360,919.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,484.92 : 642,369.45 = 261,535.83 : x
  2. Step 2: Convert to fraction form
    465,484.92/642,369.45 = 261,535.83/x
  3. Step 3: Cross multiply
    465,484.92x = 642,369.45 × 261,535.83
  4. Step 4: Simplify right side
    465,484.92x = 168,002,627,272.39
  5. Step 5: Solve for x
    x = 168,002,627,272.39/465,484.92
  6. Step 6: Final answer
    x = 360,919.59

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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.