Home / 813,204.54-1,122,228.88-450,634.46

Finding the Fourth Proportional to 813,204.54, 1,122,228.88 and 450,634.46

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Solution

The fourth proportional to 813,204.54, 1,122,228.88 and 450,634.46 is: 621,879.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,204.54 : 1,122,228.88 = 450,634.46 : x
  2. Step 2: Convert to fraction form
    813,204.54/1,122,228.88 = 450,634.46/x
  3. Step 3: Cross multiply
    813,204.54x = 1,122,228.88 × 450,634.46
  4. Step 4: Simplify right side
    813,204.54x = 505,715,005,335.21
  5. Step 5: Solve for x
    x = 505,715,005,335.21/813,204.54
  6. Step 6: Final answer
    x = 621,879.22

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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.