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Finding the Fourth Proportional to 343,258.62, 473,724.86 and 190,344.76

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Solution

The fourth proportional to 343,258.62, 473,724.86 and 190,344.76 is: 262,691.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,258.62 : 473,724.86 = 190,344.76 : x
  2. Step 2: Convert to fraction form
    343,258.62/473,724.86 = 190,344.76/x
  3. Step 3: Cross multiply
    343,258.62x = 473,724.86 × 190,344.76
  4. Step 4: Simplify right side
    343,258.62x = 90,171,042,414.11
  5. Step 5: Solve for x
    x = 90,171,042,414.11/343,258.62
  6. Step 6: Final answer
    x = 262,691.27

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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.