Home / 746,021.88-1,119,005.46-213,542.10

Finding the Fourth Proportional to 746,021.88, 1,119,005.46 and 213,542.10

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Solution

The fourth proportional to 746,021.88, 1,119,005.46 and 213,542.10 is: 320,305.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,021.88 : 1,119,005.46 = 213,542.10 : x
  2. Step 2: Convert to fraction form
    746,021.88/1,119,005.46 = 213,542.10/x
  3. Step 3: Cross multiply
    746,021.88x = 1,119,005.46 × 213,542.10
  4. Step 4: Simplify right side
    746,021.88x = 238,954,775,839.87
  5. Step 5: Solve for x
    x = 238,954,775,839.87/746,021.88
  6. Step 6: Final answer
    x = 320,305.32

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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.