Home / 386,924.58-533,979.72-217,158.84

Finding the Fourth Proportional to 386,924.58, 533,979.72 and 217,158.84

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Solution

The fourth proportional to 386,924.58, 533,979.72 and 217,158.84 is: 299,692.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,924.58 : 533,979.72 = 217,158.84 : x
  2. Step 2: Convert to fraction form
    386,924.58/533,979.72 = 217,158.84/x
  3. Step 3: Cross multiply
    386,924.58x = 533,979.72 × 217,158.84
  4. Step 4: Simplify right side
    386,924.58x = 115,958,416,578.73
  5. Step 5: Solve for x
    x = 115,958,416,578.73/386,924.58
  6. Step 6: Final answer
    x = 299,692.56

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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.