Home / 387,209.27-534,425.30-247,418.51

Finding the Fourth Proportional to 387,209.27, 534,425.30 and 247,418.51

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Solution

The fourth proportional to 387,209.27, 534,425.30 and 247,418.51 is: 341,486.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,209.27 : 534,425.30 = 247,418.51 : x
  2. Step 2: Convert to fraction form
    387,209.27/534,425.30 = 247,418.51/x
  3. Step 3: Cross multiply
    387,209.27x = 534,425.30 × 247,418.51
  4. Step 4: Simplify right side
    387,209.27x = 132,226,707,523.08
  5. Step 5: Solve for x
    x = 132,226,707,523.08/387,209.27
  6. Step 6: Final answer
    x = 341,486.42

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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.