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Finding the Fourth Proportional to 404,472.40, 606,838.20 and 271,502.80

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Solution

The fourth proportional to 404,472.40, 606,838.20 and 271,502.80 is: 407,341.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,472.40 : 606,838.20 = 271,502.80 : x
  2. Step 2: Convert to fraction form
    404,472.40/606,838.20 = 271,502.80/x
  3. Step 3: Cross multiply
    404,472.40x = 606,838.20 × 271,502.80
  4. Step 4: Simplify right side
    404,472.40x = 164,758,270,446.96
  5. Step 5: Solve for x
    x = 164,758,270,446.96/404,472.40
  6. Step 6: Final answer
    x = 407,341.19

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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.