Home / 821,618.06-1,133,638.52-477,249.38

Finding the Fourth Proportional to 821,618.06, 1,133,638.52 and 477,249.38

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Solution

The fourth proportional to 821,618.06, 1,133,638.52 and 477,249.38 is: 658,491.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,618.06 : 1,133,638.52 = 477,249.38 : x
  2. Step 2: Convert to fraction form
    821,618.06/1,133,638.52 = 477,249.38/x
  3. Step 3: Cross multiply
    821,618.06x = 1,133,638.52 × 477,249.38
  4. Step 4: Simplify right side
    821,618.06x = 541,028,280,814.12
  5. Step 5: Solve for x
    x = 541,028,280,814.12/821,618.06
  6. Step 6: Final answer
    x = 658,491.22

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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.