Home / 859,156.59-1,288,968.17-260,137.83

Finding the Fourth Proportional to 859,156.59, 1,288,968.17 and 260,137.83

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Solution

The fourth proportional to 859,156.59, 1,288,968.17 and 260,137.83 is: 390,277.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,156.59 : 1,288,968.17 = 260,137.83 : x
  2. Step 2: Convert to fraction form
    859,156.59/1,288,968.17 = 260,137.83/x
  3. Step 3: Cross multiply
    859,156.59x = 1,288,968.17 × 260,137.83
  4. Step 4: Simplify right side
    859,156.59x = 335,309,381,382.18
  5. Step 5: Solve for x
    x = 335,309,381,382.18/859,156.59
  6. Step 6: Final answer
    x = 390,277.38

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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.