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Finding the Fourth Proportional to 368,575.41, 508,791 and 247,786.75

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Solution

The fourth proportional to 368,575.41, 508,791 and 247,786.75 is: 342,051.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,575.41 : 508,791 = 247,786.75 : x
  2. Step 2: Convert to fraction form
    368,575.41/508,791 = 247,786.75/x
  3. Step 3: Cross multiply
    368,575.41x = 508,791 × 247,786.75
  4. Step 4: Simplify right side
    368,575.41x = 126,071,668,319.25
  5. Step 5: Solve for x
    x = 126,071,668,319.25/368,575.41
  6. Step 6: Final answer
    x = 342,051.22

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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.