Home / 381,929.36-527,066.12-209,850.92

Finding the Fourth Proportional to 381,929.36, 527,066.12 and 209,850.92

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Solution

The fourth proportional to 381,929.36, 527,066.12 and 209,850.92 is: 289,596.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,929.36 : 527,066.12 = 209,850.92 : x
  2. Step 2: Convert to fraction form
    381,929.36/527,066.12 = 209,850.92/x
  3. Step 3: Cross multiply
    381,929.36x = 527,066.12 × 209,850.92
  4. Step 4: Simplify right side
    381,929.36x = 110,605,310,182.83
  5. Step 5: Solve for x
    x = 110,605,310,182.83/381,929.36
  6. Step 6: Final answer
    x = 289,596.25

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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.