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Finding the Fourth Proportional to 290,552.38, 400,984.15 and 177,397.00

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Solution

The fourth proportional to 290,552.38, 400,984.15 and 177,397.00 is: 244,821.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,552.38 : 400,984.15 = 177,397.00 : x
  2. Step 2: Convert to fraction form
    290,552.38/400,984.15 = 177,397.00/x
  3. Step 3: Cross multiply
    290,552.38x = 400,984.15 × 177,397.00
  4. Step 4: Simplify right side
    290,552.38x = 71,133,382,809.14
  5. Step 5: Solve for x
    x = 71,133,382,809.14/290,552.38
  6. Step 6: Final answer
    x = 244,821.21

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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.