Home / 712,114.96-982,718.56-389,825.27

Finding the Fourth Proportional to 712,114.96, 982,718.56 and 389,825.27

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Solution

The fourth proportional to 712,114.96, 982,718.56 and 389,825.27 is: 537,958.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,114.96 : 982,718.56 = 389,825.27 : x
  2. Step 2: Convert to fraction form
    712,114.96/982,718.56 = 389,825.27/x
  3. Step 3: Cross multiply
    712,114.96x = 982,718.56 × 389,825.27
  4. Step 4: Simplify right side
    712,114.96x = 383,088,527,986.01
  5. Step 5: Solve for x
    x = 383,088,527,986.01/712,114.96
  6. Step 6: Final answer
    x = 537,958.83

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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.