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Finding the Fourth Proportional to 404,324.96, 606,423.17 and 134,430.65

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Solution

The fourth proportional to 404,324.96, 606,423.17 and 134,430.65 is: 201,624.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,324.96 : 606,423.17 = 134,430.65 : x
  2. Step 2: Convert to fraction form
    404,324.96/606,423.17 = 134,430.65/x
  3. Step 3: Cross multiply
    404,324.96x = 606,423.17 × 134,430.65
  4. Step 4: Simplify right side
    404,324.96x = 81,521,857,213.89
  5. Step 5: Solve for x
    x = 81,521,857,213.89/404,324.96
  6. Step 6: Final answer
    x = 201,624.60

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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.