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Finding the Fourth Proportional to 296,778.84, 409,545.90 and 169,429.56

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Solution

The fourth proportional to 296,778.84, 409,545.90 and 169,429.56 is: 233,807.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,778.84 : 409,545.90 = 169,429.56 : x
  2. Step 2: Convert to fraction form
    296,778.84/409,545.90 = 169,429.56/x
  3. Step 3: Cross multiply
    296,778.84x = 409,545.90 × 169,429.56
  4. Step 4: Simplify right side
    296,778.84x = 69,389,181,636.80
  5. Step 5: Solve for x
    x = 69,389,181,636.80/296,778.84
  6. Step 6: Final answer
    x = 233,807.71

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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.