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Finding the Fourth Proportional to 292,693.89, 438,725.87 and 191,453.82

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Solution

The fourth proportional to 292,693.89, 438,725.87 and 191,453.82 is: 286,974.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,693.89 : 438,725.87 = 191,453.82 : x
  2. Step 2: Convert to fraction form
    292,693.89/438,725.87 = 191,453.82/x
  3. Step 3: Cross multiply
    292,693.89x = 438,725.87 × 191,453.82
  4. Step 4: Simplify right side
    292,693.89x = 83,995,743,744.32
  5. Step 5: Solve for x
    x = 83,995,743,744.32/292,693.89
  6. Step 6: Final answer
    x = 286,974.71

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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.