Home / 287,827.11-397,272.61-196,098.19

Finding the Fourth Proportional to 287,827.11, 397,272.61 and 196,098.19

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Solution

The fourth proportional to 287,827.11, 397,272.61 and 196,098.19 is: 270,664.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,827.11 : 397,272.61 = 196,098.19 : x
  2. Step 2: Convert to fraction form
    287,827.11/397,272.61 = 196,098.19/x
  3. Step 3: Cross multiply
    287,827.11x = 397,272.61 × 196,098.19
  4. Step 4: Simplify right side
    287,827.11x = 77,904,439,757.58
  5. Step 5: Solve for x
    x = 77,904,439,757.58/287,827.11
  6. Step 6: Final answer
    x = 270,664.01

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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.