Home / 831,995.03-1,247,996.19-263,378.91

Finding the Fourth Proportional to 831,995.03, 1,247,996.19 and 263,378.91

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Solution

The fourth proportional to 831,995.03, 1,247,996.19 and 263,378.91 is: 395,069.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,995.03 : 1,247,996.19 = 263,378.91 : x
  2. Step 2: Convert to fraction form
    831,995.03/1,247,996.19 = 263,378.91/x
  3. Step 3: Cross multiply
    831,995.03x = 1,247,996.19 × 263,378.91
  4. Step 4: Simplify right side
    831,995.03x = 328,695,876,206.35
  5. Step 5: Solve for x
    x = 328,695,876,206.35/831,995.03
  6. Step 6: Final answer
    x = 395,069.52

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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.