Home / 386,937.36-533,962.89-231,976.26

Finding the Fourth Proportional to 386,937.36, 533,962.89 and 231,976.26

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Solution

The fourth proportional to 386,937.36, 533,962.89 and 231,976.26 is: 320,120.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,937.36 : 533,962.89 = 231,976.26 : x
  2. Step 2: Convert to fraction form
    386,937.36/533,962.89 = 231,976.26/x
  3. Step 3: Cross multiply
    386,937.36x = 533,962.89 × 231,976.26
  4. Step 4: Simplify right side
    386,937.36x = 123,866,714,200.99
  5. Step 5: Solve for x
    x = 123,866,714,200.99/386,937.36
  6. Step 6: Final answer
    x = 320,120.84

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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.