Home / 386,229.60-579,733.20-186,710.40

Finding the Fourth Proportional to 386,229.60, 579,733.20 and 186,710.40

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Solution

The fourth proportional to 386,229.60, 579,733.20 and 186,710.40 is: 280,253.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,229.60 : 579,733.20 = 186,710.40 : x
  2. Step 2: Convert to fraction form
    386,229.60/579,733.20 = 186,710.40/x
  3. Step 3: Cross multiply
    386,229.60x = 579,733.20 × 186,710.40
  4. Step 4: Simplify right side
    386,229.60x = 108,242,217,665.28
  5. Step 5: Solve for x
    x = 108,242,217,665.28/386,229.60
  6. Step 6: Final answer
    x = 280,253.55

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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.