Home / 644,906.20-967,359.30-171,639.40

Finding the Fourth Proportional to 644,906.20, 967,359.30 and 171,639.40

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Solution

The fourth proportional to 644,906.20, 967,359.30 and 171,639.40 is: 257,459.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,906.20 : 967,359.30 = 171,639.40 : x
  2. Step 2: Convert to fraction form
    644,906.20/967,359.30 = 171,639.40/x
  3. Step 3: Cross multiply
    644,906.20x = 967,359.30 × 171,639.40
  4. Step 4: Simplify right side
    644,906.20x = 166,036,969,836.42
  5. Step 5: Solve for x
    x = 166,036,969,836.42/644,906.20
  6. Step 6: Final answer
    x = 257,459.10

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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.