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Finding the Fourth Proportional to 418,696.48, 577,795.56 and 227,705.76

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Solution

The fourth proportional to 418,696.48, 577,795.56 and 227,705.76 is: 314,230.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,696.48 : 577,795.56 = 227,705.76 : x
  2. Step 2: Convert to fraction form
    418,696.48/577,795.56 = 227,705.76/x
  3. Step 3: Cross multiply
    418,696.48x = 577,795.56 × 227,705.76
  4. Step 4: Simplify right side
    418,696.48x = 131,567,377,114.43
  5. Step 5: Solve for x
    x = 131,567,377,114.43/418,696.48
  6. Step 6: Final answer
    x = 314,230.91

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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.