Home / 1,391,634.90-2,087,452.35-445,101.30

Finding the Fourth Proportional to 1,391,634.90, 2,087,452.35 and 445,101.30

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Solution

The fourth proportional to 1,391,634.90, 2,087,452.35 and 445,101.30 is: 667,651.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,634.90 : 2,087,452.35 = 445,101.30 : x
  2. Step 2: Convert to fraction form
    1,391,634.90/2,087,452.35 = 445,101.30/x
  3. Step 3: Cross multiply
    1,391,634.90x = 2,087,452.35 × 445,101.30
  4. Step 4: Simplify right side
    1,391,634.90x = 929,127,754,673.06
  5. Step 5: Solve for x
    x = 929,127,754,673.06/1,391,634.90
  6. Step 6: Final answer
    x = 667,651.95

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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.