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Finding the Fourth Proportional to 319,791.96, 441,313.56 and 176,552.28

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Solution

The fourth proportional to 319,791.96, 441,313.56 and 176,552.28 is: 243,642.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,791.96 : 441,313.56 = 176,552.28 : x
  2. Step 2: Convert to fraction form
    319,791.96/441,313.56 = 176,552.28/x
  3. Step 3: Cross multiply
    319,791.96x = 441,313.56 × 176,552.28
  4. Step 4: Simplify right side
    319,791.96x = 77,914,915,212.92
  5. Step 5: Solve for x
    x = 77,914,915,212.92/319,791.96
  6. Step 6: Final answer
    x = 243,642.51

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1.5x scale

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.