Home / 644,834.20-967,251.30-395,656.60

Finding the Fourth Proportional to 644,834.20, 967,251.30 and 395,656.60

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Solution

The fourth proportional to 644,834.20, 967,251.30 and 395,656.60 is: 593,484.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,834.20 : 967,251.30 = 395,656.60 : x
  2. Step 2: Convert to fraction form
    644,834.20/967,251.30 = 395,656.60/x
  3. Step 3: Cross multiply
    644,834.20x = 967,251.30 × 395,656.60
  4. Step 4: Simplify right side
    644,834.20x = 382,699,360,703.58
  5. Step 5: Solve for x
    x = 382,699,360,703.58/644,834.20
  6. Step 6: Final answer
    x = 593,484.90

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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.