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Finding the Fourth Proportional to 518,338.93, 777,574.15 and 202,754.83

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Solution

The fourth proportional to 518,338.93, 777,574.15 and 202,754.83 is: 304,157.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,338.93 : 777,574.15 = 202,754.83 : x
  2. Step 2: Convert to fraction form
    518,338.93/777,574.15 = 202,754.83/x
  3. Step 3: Cross multiply
    518,338.93x = 777,574.15 × 202,754.83
  4. Step 4: Simplify right side
    518,338.93x = 157,656,914,595.65
  5. Step 5: Solve for x
    x = 157,656,914,595.65/518,338.93
  6. Step 6: Final answer
    x = 304,157.97

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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.