Home / 354,727.28-489,521.40-193,579.04

Finding the Fourth Proportional to 354,727.28, 489,521.40 and 193,579.04

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Solution

The fourth proportional to 354,727.28, 489,521.40 and 193,579.04 is: 267,137.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,727.28 : 489,521.40 = 193,579.04 : x
  2. Step 2: Convert to fraction form
    354,727.28/489,521.40 = 193,579.04/x
  3. Step 3: Cross multiply
    354,727.28x = 489,521.40 × 193,579.04
  4. Step 4: Simplify right side
    354,727.28x = 94,761,082,671.46
  5. Step 5: Solve for x
    x = 94,761,082,671.46/354,727.28
  6. Step 6: Final answer
    x = 267,137.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.