Home / 644,904.20-967,356.30-171,637.40

Finding the Fourth Proportional to 644,904.20, 967,356.30 and 171,637.40

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Solution

The fourth proportional to 644,904.20, 967,356.30 and 171,637.40 is: 257,456.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,904.20 : 967,356.30 = 171,637.40 : x
  2. Step 2: Convert to fraction form
    644,904.20/967,356.30 = 171,637.40/x
  3. Step 3: Cross multiply
    644,904.20x = 967,356.30 × 171,637.40
  4. Step 4: Simplify right side
    644,904.20x = 166,034,520,205.62
  5. Step 5: Solve for x
    x = 166,034,520,205.62/644,904.20
  6. Step 6: Final answer
    x = 257,456.10

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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.