Home / 919,071.03-1,268,229.17-531,809.20

Finding the Fourth Proportional to 919,071.03, 1,268,229.17 and 531,809.20

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Solution

The fourth proportional to 919,071.03, 1,268,229.17 and 531,809.20 is: 733,845.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,071.03 : 1,268,229.17 = 531,809.20 : x
  2. Step 2: Convert to fraction form
    919,071.03/1,268,229.17 = 531,809.20/x
  3. Step 3: Cross multiply
    919,071.03x = 1,268,229.17 × 531,809.20
  4. Step 4: Simplify right side
    919,071.03x = 674,455,942,251.29
  5. Step 5: Solve for x
    x = 674,455,942,251.29/919,071.03
  6. Step 6: Final answer
    x = 733,845.28

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Double scale
Find fourth proportional to 919,072.03, 1,268,230.55 and 531,810.20
Similar ratio
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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.