Home / 687,178.14-948,273.81-381,251.27

Finding the Fourth Proportional to 687,178.14, 948,273.81 and 381,251.27

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Solution

The fourth proportional to 687,178.14, 948,273.81 and 381,251.27 is: 526,108.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,178.14 : 948,273.81 = 381,251.27 : x
  2. Step 2: Convert to fraction form
    687,178.14/948,273.81 = 381,251.27/x
  3. Step 3: Cross multiply
    687,178.14x = 948,273.81 × 381,251.27
  4. Step 4: Simplify right side
    687,178.14x = 361,530,589,628.87
  5. Step 5: Solve for x
    x = 361,530,589,628.87/687,178.14
  6. Step 6: Final answer
    x = 526,108.98

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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.