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Finding the Fourth Proportional to 691,992.05, 954,972.59 and 401,581.13

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Solution

The fourth proportional to 691,992.05, 954,972.59 and 401,581.13 is: 554,195.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,992.05 : 954,972.59 = 401,581.13 : x
  2. Step 2: Convert to fraction form
    691,992.05/954,972.59 = 401,581.13/x
  3. Step 3: Cross multiply
    691,992.05x = 954,972.59 × 401,581.13
  4. Step 4: Simplify right side
    691,992.05x = 383,498,965,028.46
  5. Step 5: Solve for x
    x = 383,498,965,028.46/691,992.05
  6. Step 6: Final answer
    x = 554,195.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.