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Finding the Fourth Proportional to 436,908.53, 602,895.31 and 243,301.61

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Solution

The fourth proportional to 436,908.53, 602,895.31 and 243,301.61 is: 335,734.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,908.53 : 602,895.31 = 243,301.61 : x
  2. Step 2: Convert to fraction form
    436,908.53/602,895.31 = 243,301.61/x
  3. Step 3: Cross multiply
    436,908.53x = 602,895.31 × 243,301.61
  4. Step 4: Simplify right side
    436,908.53x = 146,685,399,584.45
  5. Step 5: Solve for x
    x = 146,685,399,584.45/436,908.53
  6. Step 6: Final answer
    x = 335,734.80

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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.