Home / 287,826.30-431,350.65-192,786.30

Finding the Fourth Proportional to 287,826.30, 431,350.65 and 192,786.30

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Solution

The fourth proportional to 287,826.30, 431,350.65 and 192,786.30 is: 288,919.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,826.30 : 431,350.65 = 192,786.30 : x
  2. Step 2: Convert to fraction form
    287,826.30/431,350.65 = 192,786.30/x
  3. Step 3: Cross multiply
    287,826.30x = 431,350.65 × 192,786.30
  4. Step 4: Simplify right side
    287,826.30x = 83,158,495,816.10
  5. Step 5: Solve for x
    x = 83,158,495,816.10/287,826.30
  6. Step 6: Final answer
    x = 288,919.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.