Home / 644,169.78-966,012.75-223,344.18

Finding the Fourth Proportional to 644,169.78, 966,012.75 and 223,344.18

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Solution

The fourth proportional to 644,169.78, 966,012.75 and 223,344.18 is: 334,932.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,169.78 : 966,012.75 = 223,344.18 : x
  2. Step 2: Convert to fraction form
    644,169.78/966,012.75 = 223,344.18/x
  3. Step 3: Cross multiply
    644,169.78x = 966,012.75 × 223,344.18
  4. Step 4: Simplify right side
    644,169.78x = 215,753,325,518.30
  5. Step 5: Solve for x
    x = 215,753,325,518.30/644,169.78
  6. Step 6: Final answer
    x = 334,932.39

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Double scale
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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.