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Finding the Fourth Proportional to 304,391.61, 420,126.63 and 177,083.91

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Solution

The fourth proportional to 304,391.61, 420,126.63 and 177,083.91 is: 244,414.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,391.61 : 420,126.63 = 177,083.91 : x
  2. Step 2: Convert to fraction form
    304,391.61/420,126.63 = 177,083.91/x
  3. Step 3: Cross multiply
    304,391.61x = 420,126.63 × 177,083.91
  4. Step 4: Simplify right side
    304,391.61x = 74,397,666,335.52
  5. Step 5: Solve for x
    x = 74,397,666,335.52/304,391.61
  6. Step 6: Final answer
    x = 244,414.31

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1.5x scale

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.