Home / 386,986.48-534,294.26-251,406.83

Finding the Fourth Proportional to 386,986.48, 534,294.26 and 251,406.83

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Solution

The fourth proportional to 386,986.48, 534,294.26 and 251,406.83 is: 347,105.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,986.48 : 534,294.26 = 251,406.83 : x
  2. Step 2: Convert to fraction form
    386,986.48/534,294.26 = 251,406.83/x
  3. Step 3: Cross multiply
    386,986.48x = 534,294.26 × 251,406.83
  4. Step 4: Simplify right side
    386,986.48x = 134,325,227,215.27
  5. Step 5: Solve for x
    x = 134,325,227,215.27/386,986.48
  6. Step 6: Final answer
    x = 347,105.74

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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.