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Finding the Fourth Proportional to 368,574.78, 508,790.14 and 247,786.13

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Solution

The fourth proportional to 368,574.78, 508,790.14 and 247,786.13 is: 342,050.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,574.78 : 508,790.14 = 247,786.13 : x
  2. Step 2: Convert to fraction form
    368,574.78/508,790.14 = 247,786.13/x
  3. Step 3: Cross multiply
    368,574.78x = 508,790.14 × 247,786.13
  4. Step 4: Simplify right side
    368,574.78x = 126,071,136,609.34
  5. Step 5: Solve for x
    x = 126,071,136,609.34/368,574.78
  6. Step 6: Final answer
    x = 342,050.36

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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.