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Finding the Fourth Proportional to 337,340.72, 465,511.92 and 186,428

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Solution

The fourth proportional to 337,340.72, 465,511.92 and 186,428 is: 257,260.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,340.72 : 465,511.92 = 186,428 : x
  2. Step 2: Convert to fraction form
    337,340.72/465,511.92 = 186,428/x
  3. Step 3: Cross multiply
    337,340.72x = 465,511.92 × 186,428
  4. Step 4: Simplify right side
    337,340.72x = 86,784,456,221.76
  5. Step 5: Solve for x
    x = 86,784,456,221.76/337,340.72
  6. Step 6: Final answer
    x = 257,260.54

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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.