Home / 420,832.41-631,459.77-196,210.42

Finding the Fourth Proportional to 420,832.41, 631,459.77 and 196,210.42

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Solution

The fourth proportional to 420,832.41, 631,459.77 and 196,210.42 is: 294,414.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,832.41 : 631,459.77 = 196,210.42 : x
  2. Step 2: Convert to fraction form
    420,832.41/631,459.77 = 196,210.42/x
  3. Step 3: Cross multiply
    420,832.41x = 631,459.77 × 196,210.42
  4. Step 4: Simplify right side
    420,832.41x = 123,898,986,684.80
  5. Step 5: Solve for x
    x = 123,898,986,684.80/420,832.41
  6. Step 6: Final answer
    x = 294,414.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.