Home / 409,901.20-610,730.48-386,982.85

Finding the Fourth Proportional to 409,901.20, 610,730.48 and 386,982.85

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Solution

The fourth proportional to 409,901.20, 610,730.48 and 386,982.85 is: 576,583.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,901.20 : 610,730.48 = 386,982.85 : x
  2. Step 2: Convert to fraction form
    409,901.20/610,730.48 = 386,982.85/x
  3. Step 3: Cross multiply
    409,901.20x = 610,730.48 × 386,982.85
  4. Step 4: Simplify right side
    409,901.20x = 236,342,221,732.27
  5. Step 5: Solve for x
    x = 236,342,221,732.27/409,901.20
  6. Step 6: Final answer
    x = 576,583.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.