Home / 456,449.20-684,673.80-231,844.30

Finding the Fourth Proportional to 456,449.20, 684,673.80 and 231,844.30

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Solution

The fourth proportional to 456,449.20, 684,673.80 and 231,844.30 is: 347,766.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,449.20 : 684,673.80 = 231,844.30 : x
  2. Step 2: Convert to fraction form
    456,449.20/684,673.80 = 231,844.30/x
  3. Step 3: Cross multiply
    456,449.20x = 684,673.80 × 231,844.30
  4. Step 4: Simplify right side
    456,449.20x = 158,737,717,889.34
  5. Step 5: Solve for x
    x = 158,737,717,889.34/456,449.20
  6. Step 6: Final answer
    x = 347,766.45

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Double scale
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Similar ratio
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1.5x scale

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.