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Finding the Fourth Proportional to 310,904.20, 465,578.70 and 248,696.20

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Solution

The fourth proportional to 310,904.20, 465,578.70 and 248,696.20 is: 372,422.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,904.20 : 465,578.70 = 248,696.20 : x
  2. Step 2: Convert to fraction form
    310,904.20/465,578.70 = 248,696.20/x
  3. Step 3: Cross multiply
    310,904.20x = 465,578.70 × 248,696.20
  4. Step 4: Simplify right side
    310,904.20x = 115,787,653,490.94
  5. Step 5: Solve for x
    x = 115,787,653,490.94/310,904.20
  6. Step 6: Final answer
    x = 372,422.29

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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.