Home / 919,023.54-1,268,241.21-516,615.54

Finding the Fourth Proportional to 919,023.54, 1,268,241.21 and 516,615.54

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Solution

The fourth proportional to 919,023.54, 1,268,241.21 and 516,615.54 is: 712,923.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,023.54 : 1,268,241.21 = 516,615.54 : x
  2. Step 2: Convert to fraction form
    919,023.54/1,268,241.21 = 516,615.54/x
  3. Step 3: Cross multiply
    919,023.54x = 1,268,241.21 × 516,615.54
  4. Step 4: Simplify right side
    919,023.54x = 655,193,117,554.40
  5. Step 5: Solve for x
    x = 655,193,117,554.40/919,023.54
  6. Step 6: Final answer
    x = 712,923.11

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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.