Home / 319,723.68-441,378.36-198,904.20

Finding the Fourth Proportional to 319,723.68, 441,378.36 and 198,904.20

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Solution

The fourth proportional to 319,723.68, 441,378.36 and 198,904.20 is: 274,587.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,723.68 : 441,378.36 = 198,904.20 : x
  2. Step 2: Convert to fraction form
    319,723.68/441,378.36 = 198,904.20/x
  3. Step 3: Cross multiply
    319,723.68x = 441,378.36 × 198,904.20
  4. Step 4: Simplify right side
    319,723.68x = 87,792,009,593.11
  5. Step 5: Solve for x
    x = 87,792,009,593.11/319,723.68
  6. Step 6: Final answer
    x = 274,587.14

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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.