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Finding the Fourth Proportional to 418,462.44, 627,541.56 and 229,062.66

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Solution

The fourth proportional to 418,462.44, 627,541.56 and 229,062.66 is: 343,510.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,462.44 : 627,541.56 = 229,062.66 : x
  2. Step 2: Convert to fraction form
    418,462.44/627,541.56 = 229,062.66/x
  3. Step 3: Cross multiply
    418,462.44x = 627,541.56 × 229,062.66
  4. Step 4: Simplify right side
    418,462.44x = 143,746,338,994.15
  5. Step 5: Solve for x
    x = 143,746,338,994.15/418,462.44
  6. Step 6: Final answer
    x = 343,510.73

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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.