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Finding the Fourth Proportional to 298,974.78, 414,366.17 and 293,376.06

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Solution

The fourth proportional to 298,974.78, 414,366.17 and 293,376.06 is: 406,606.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,974.78 : 414,366.17 = 293,376.06 : x
  2. Step 2: Convert to fraction form
    298,974.78/414,366.17 = 293,376.06/x
  3. Step 3: Cross multiply
    298,974.78x = 414,366.17 × 293,376.06
  4. Step 4: Simplify right side
    298,974.78x = 121,565,112,885.01
  5. Step 5: Solve for x
    x = 121,565,112,885.01/298,974.78
  6. Step 6: Final answer
    x = 406,606.58

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.