Home / 658,065.16-987,117.90-225,776.56

Finding the Fourth Proportional to 658,065.16, 987,117.90 and 225,776.56

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Solution

The fourth proportional to 658,065.16, 987,117.90 and 225,776.56 is: 338,671.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,065.16 : 987,117.90 = 225,776.56 : x
  2. Step 2: Convert to fraction form
    658,065.16/987,117.90 = 225,776.56/x
  3. Step 3: Cross multiply
    658,065.16x = 987,117.90 × 225,776.56
  4. Step 4: Simplify right side
    658,065.16x = 222,868,083,776.42
  5. Step 5: Solve for x
    x = 222,868,083,776.42/658,065.16
  6. Step 6: Final answer
    x = 338,671.76

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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.