Home / 1,391,673.78-2,087,378.91-444,790.26

Finding the Fourth Proportional to 1,391,673.78, 2,087,378.91 and 444,790.26

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Solution

The fourth proportional to 1,391,673.78, 2,087,378.91 and 444,790.26 is: 667,143.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,673.78 : 2,087,378.91 = 444,790.26 : x
  2. Step 2: Convert to fraction form
    1,391,673.78/2,087,378.91 = 444,790.26/x
  3. Step 3: Cross multiply
    1,391,673.78x = 2,087,378.91 × 444,790.26
  4. Step 4: Simplify right side
    1,391,673.78x = 928,445,808,097.42
  5. Step 5: Solve for x
    x = 928,445,808,097.42/1,391,673.78
  6. Step 6: Final answer
    x = 667,143.28

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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.