Home / 919,189.34-1,268,462.58-511,282.40

Finding the Fourth Proportional to 919,189.34, 1,268,462.58 and 511,282.40

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Solution

The fourth proportional to 919,189.34, 1,268,462.58 and 511,282.40 is: 705,559.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,189.34 : 1,268,462.58 = 511,282.40 : x
  2. Step 2: Convert to fraction form
    919,189.34/1,268,462.58 = 511,282.40/x
  3. Step 3: Cross multiply
    919,189.34x = 1,268,462.58 × 511,282.40
  4. Step 4: Simplify right side
    919,189.34x = 648,542,597,531.59
  5. Step 5: Solve for x
    x = 648,542,597,531.59/919,189.34
  6. Step 6: Final answer
    x = 705,559.31

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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.