Home / 639,822.36-882,947.52-367,891.34

Finding the Fourth Proportional to 639,822.36, 882,947.52 and 367,891.34

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Solution

The fourth proportional to 639,822.36, 882,947.52 and 367,891.34 is: 507,685.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,822.36 : 882,947.52 = 367,891.34 : x
  2. Step 2: Convert to fraction form
    639,822.36/882,947.52 = 367,891.34/x
  3. Step 3: Cross multiply
    639,822.36x = 882,947.52 × 367,891.34
  4. Step 4: Simplify right side
    639,822.36x = 324,828,741,867.74
  5. Step 5: Solve for x
    x = 324,828,741,867.74/639,822.36
  6. Step 6: Final answer
    x = 507,685.83

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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.