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Finding the Fourth Proportional to 368,971.56, 550,306.89 and 313,178.76

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Solution

The fourth proportional to 368,971.56, 550,306.89 and 313,178.76 is: 467,094.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,971.56 : 550,306.89 = 313,178.76 : x
  2. Step 2: Convert to fraction form
    368,971.56/550,306.89 = 313,178.76/x
  3. Step 3: Cross multiply
    368,971.56x = 550,306.89 × 313,178.76
  4. Step 4: Simplify right side
    368,971.56x = 172,344,429,429.66
  5. Step 5: Solve for x
    x = 172,344,429,429.66/368,971.56
  6. Step 6: Final answer
    x = 467,094.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.