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Finding the Fourth Proportional to 404,297.66, 606,507.15 and 130,652.66

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Solution

The fourth proportional to 404,297.66, 606,507.15 and 130,652.66 is: 195,998.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,297.66 : 606,507.15 = 130,652.66 : x
  2. Step 2: Convert to fraction form
    404,297.66/606,507.15 = 130,652.66/x
  3. Step 3: Cross multiply
    404,297.66x = 606,507.15 × 130,652.66
  4. Step 4: Simplify right side
    404,297.66x = 79,241,772,456.52
  5. Step 5: Solve for x
    x = 79,241,772,456.52/404,297.66
  6. Step 6: Final answer
    x = 195,998.59

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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.