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Finding the Fourth Proportional to 269,726.91, 404,461.14 and 127,453.78

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Solution

The fourth proportional to 269,726.91, 404,461.14 and 127,453.78 is: 191,119.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,726.91 : 404,461.14 = 127,453.78 : x
  2. Step 2: Convert to fraction form
    269,726.91/404,461.14 = 127,453.78/x
  3. Step 3: Cross multiply
    269,726.91x = 404,461.14 × 127,453.78
  4. Step 4: Simplify right side
    269,726.91x = 51,550,101,156.11
  5. Step 5: Solve for x
    x = 51,550,101,156.11/269,726.91
  6. Step 6: Final answer
    x = 191,119.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.