Home / 891,105.52-1,229,611.96-509,157.04

Finding the Fourth Proportional to 891,105.52, 1,229,611.96 and 509,157.04

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Solution

The fourth proportional to 891,105.52, 1,229,611.96 and 509,157.04 is: 702,571.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,105.52 : 1,229,611.96 = 509,157.04 : x
  2. Step 2: Convert to fraction form
    891,105.52/1,229,611.96 = 509,157.04/x
  3. Step 3: Cross multiply
    891,105.52x = 1,229,611.96 × 509,157.04
  4. Step 4: Simplify right side
    891,105.52x = 626,065,585,902.20
  5. Step 5: Solve for x
    x = 626,065,585,902.20/891,105.52
  6. Step 6: Final answer
    x = 702,571.77

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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.