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Finding the Fourth Proportional to 424,496.12, 585,719.67 and 243,264.89

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Solution

The fourth proportional to 424,496.12, 585,719.67 and 243,264.89 is: 335,656.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,496.12 : 585,719.67 = 243,264.89 : x
  2. Step 2: Convert to fraction form
    424,496.12/585,719.67 = 243,264.89/x
  3. Step 3: Cross multiply
    424,496.12x = 585,719.67 × 243,264.89
  4. Step 4: Simplify right side
    424,496.12x = 142,485,033,469.93
  5. Step 5: Solve for x
    x = 142,485,033,469.93/424,496.12
  6. Step 6: Final answer
    x = 335,656.86

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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.