Home / 498,166.32-687,472.20-271,816.68

Finding the Fourth Proportional to 498,166.32, 687,472.20 and 271,816.68

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Solution

The fourth proportional to 498,166.32, 687,472.20 and 271,816.68 is: 375,108.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,166.32 : 687,472.20 = 271,816.68 : x
  2. Step 2: Convert to fraction form
    498,166.32/687,472.20 = 271,816.68/x
  3. Step 3: Cross multiply
    498,166.32x = 687,472.20 × 271,816.68
  4. Step 4: Simplify right side
    498,166.32x = 186,866,410,996.30
  5. Step 5: Solve for x
    x = 186,866,410,996.30/498,166.32
  6. Step 6: Final answer
    x = 375,108.48

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1.5x scale

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.