Home / 398,030.27-597,278.69-285,589.31

Finding the Fourth Proportional to 398,030.27, 597,278.69 and 285,589.31

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Solution

The fourth proportional to 398,030.27, 597,278.69 and 285,589.31 is: 428,551.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,030.27 : 597,278.69 = 285,589.31 : x
  2. Step 2: Convert to fraction form
    398,030.27/597,278.69 = 285,589.31/x
  3. Step 3: Cross multiply
    398,030.27x = 597,278.69 × 285,589.31
  4. Step 4: Simplify right side
    398,030.27x = 170,576,407,526.86
  5. Step 5: Solve for x
    x = 170,576,407,526.86/398,030.27
  6. Step 6: Final answer
    x = 428,551.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.