Home / 919,126.14-1,268,375.88-511,219.20

Finding the Fourth Proportional to 919,126.14, 1,268,375.88 and 511,219.20

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Solution

The fourth proportional to 919,126.14, 1,268,375.88 and 511,219.20 is: 705,472.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,126.14 : 1,268,375.88 = 511,219.20 : x
  2. Step 2: Convert to fraction form
    919,126.14/1,268,375.88 = 511,219.20/x
  3. Step 3: Cross multiply
    919,126.14x = 1,268,375.88 × 511,219.20
  4. Step 4: Simplify right side
    919,126.14x = 648,418,099,336.16
  5. Step 5: Solve for x
    x = 648,418,099,336.16/919,126.14
  6. Step 6: Final answer
    x = 705,472.38

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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.