Home / 644,021.70-966,032.55-223,340.10

Finding the Fourth Proportional to 644,021.70, 966,032.55 and 223,340.10

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Solution

The fourth proportional to 644,021.70, 966,032.55 and 223,340.10 is: 335,010.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,021.70 : 966,032.55 = 223,340.10 : x
  2. Step 2: Convert to fraction form
    644,021.70/966,032.55 = 223,340.10/x
  3. Step 3: Cross multiply
    644,021.70x = 966,032.55 × 223,340.10
  4. Step 4: Simplify right side
    644,021.70x = 215,753,806,320.26
  5. Step 5: Solve for x
    x = 215,753,806,320.26/644,021.70
  6. Step 6: Final answer
    x = 335,010.15

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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.