Home / 658,836.40-988,297.80-185,537.20

Finding the Fourth Proportional to 658,836.40, 988,297.80 and 185,537.20

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Solution

The fourth proportional to 658,836.40, 988,297.80 and 185,537.20 is: 278,317.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,836.40 : 988,297.80 = 185,537.20 : x
  2. Step 2: Convert to fraction form
    658,836.40/988,297.80 = 185,537.20/x
  3. Step 3: Cross multiply
    658,836.40x = 988,297.80 × 185,537.20
  4. Step 4: Simplify right side
    658,836.40x = 183,366,006,578.16
  5. Step 5: Solve for x
    x = 183,366,006,578.16/658,836.40
  6. Step 6: Final answer
    x = 278,317.97

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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.