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Finding the Fourth Proportional to 480,393.74, 662,969.22 and 265,553.78

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Solution

The fourth proportional to 480,393.74, 662,969.22 and 265,553.78 is: 366,478.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,393.74 : 662,969.22 = 265,553.78 : x
  2. Step 2: Convert to fraction form
    480,393.74/662,969.22 = 265,553.78/x
  3. Step 3: Cross multiply
    480,393.74x = 662,969.22 × 265,553.78
  4. Step 4: Simplify right side
    480,393.74x = 176,053,982,394.65
  5. Step 5: Solve for x
    x = 176,053,982,394.65/480,393.74
  6. Step 6: Final answer
    x = 366,478.51

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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.