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Finding the Fourth Proportional to 379,493.40, 569,896.20 and 202,346.40

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Solution

The fourth proportional to 379,493.40, 569,896.20 and 202,346.40 is: 303,869.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,493.40 : 569,896.20 = 202,346.40 : x
  2. Step 2: Convert to fraction form
    379,493.40/569,896.20 = 202,346.40/x
  3. Step 3: Cross multiply
    379,493.40x = 569,896.20 × 202,346.40
  4. Step 4: Simplify right side
    379,493.40x = 115,316,444,443.68
  5. Step 5: Solve for x
    x = 115,316,444,443.68/379,493.40
  6. Step 6: Final answer
    x = 303,869.43

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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.