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Finding the Fourth Proportional to 372,447.68, 513,916.54 and 234,605.19

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Solution

The fourth proportional to 372,447.68, 513,916.54 and 234,605.19 is: 323,716.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,447.68 : 513,916.54 = 234,605.19 : x
  2. Step 2: Convert to fraction form
    372,447.68/513,916.54 = 234,605.19/x
  3. Step 3: Cross multiply
    372,447.68x = 513,916.54 × 234,605.19
  4. Step 4: Simplify right side
    372,447.68x = 120,567,486,924.33
  5. Step 5: Solve for x
    x = 120,567,486,924.33/372,447.68
  6. Step 6: Final answer
    x = 323,716.57

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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.