Home / 287,910.89-397,444.43-185,986.04

Finding the Fourth Proportional to 287,910.89, 397,444.43 and 185,986.04

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Solution

The fourth proportional to 287,910.89, 397,444.43 and 185,986.04 is: 256,743.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,910.89 : 397,444.43 = 185,986.04 : x
  2. Step 2: Convert to fraction form
    287,910.89/397,444.43 = 185,986.04/x
  3. Step 3: Cross multiply
    287,910.89x = 397,444.43 × 185,986.04
  4. Step 4: Simplify right side
    287,910.89x = 73,919,115,719.44
  5. Step 5: Solve for x
    x = 73,919,115,719.44/287,910.89
  6. Step 6: Final answer
    x = 256,743.04

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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.