Home / 813,203.55-1,122,227.49-450,633.45

Finding the Fourth Proportional to 813,203.55, 1,122,227.49 and 450,633.45

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Solution

The fourth proportional to 813,203.55, 1,122,227.49 and 450,633.45 is: 621,877.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,203.55 : 1,122,227.49 = 450,633.45 : x
  2. Step 2: Convert to fraction form
    813,203.55/1,122,227.49 = 450,633.45/x
  3. Step 3: Cross multiply
    813,203.55x = 1,122,227.49 × 450,633.45
  4. Step 4: Simplify right side
    813,203.55x = 505,713,245,503.54
  5. Step 5: Solve for x
    x = 505,713,245,503.54/813,203.55
  6. Step 6: Final answer
    x = 621,877.81

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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.