Home / 812,886.03-1,121,766.17-450,304.11

Finding the Fourth Proportional to 812,886.03, 1,121,766.17 and 450,304.11

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Solution

The fourth proportional to 812,886.03, 1,121,766.17 and 450,304.11 is: 621,410.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,886.03 : 1,121,766.17 = 450,304.11 : x
  2. Step 2: Convert to fraction form
    812,886.03/1,121,766.17 = 450,304.11/x
  3. Step 3: Cross multiply
    812,886.03x = 1,121,766.17 × 450,304.11
  4. Step 4: Simplify right side
    812,886.03x = 505,135,914,558.44
  5. Step 5: Solve for x
    x = 505,135,914,558.44/812,886.03
  6. Step 6: Final answer
    x = 621,410.50

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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.