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Finding the Fourth Proportional to 368,575.16, 508,790.66 and 247,786.50

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Solution

The fourth proportional to 368,575.16, 508,790.66 and 247,786.50 is: 342,050.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,575.16 : 508,790.66 = 247,786.50 : x
  2. Step 2: Convert to fraction form
    368,575.16/508,790.66 = 247,786.50/x
  3. Step 3: Cross multiply
    368,575.16x = 508,790.66 × 247,786.50
  4. Step 4: Simplify right side
    368,575.16x = 126,071,455,635.16
  5. Step 5: Solve for x
    x = 126,071,455,635.16/368,575.16
  6. Step 6: Final answer
    x = 342,050.88

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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.