Home / 319,561.28-478,977.66-199,673.58

Finding the Fourth Proportional to 319,561.28, 478,977.66 and 199,673.58

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Solution

The fourth proportional to 319,561.28, 478,977.66 and 199,673.58 is: 299,282.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,561.28 : 478,977.66 = 199,673.58 : x
  2. Step 2: Convert to fraction form
    319,561.28/478,977.66 = 199,673.58/x
  3. Step 3: Cross multiply
    319,561.28x = 478,977.66 × 199,673.58
  4. Step 4: Simplify right side
    319,561.28x = 95,639,184,112.22
  5. Step 5: Solve for x
    x = 95,639,184,112.22/319,561.28
  6. Step 6: Final answer
    x = 299,282.77

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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.