Home / 831,137.12-1,246,776.39-262,366.05

Finding the Fourth Proportional to 831,137.12, 1,246,776.39 and 262,366.05

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Solution

The fourth proportional to 831,137.12, 1,246,776.39 and 262,366.05 is: 393,571.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,137.12 : 1,246,776.39 = 262,366.05 : x
  2. Step 2: Convert to fraction form
    831,137.12/1,246,776.39 = 262,366.05/x
  3. Step 3: Cross multiply
    831,137.12x = 1,246,776.39 × 262,366.05
  4. Step 4: Simplify right side
    831,137.12x = 327,111,796,677.56
  5. Step 5: Solve for x
    x = 327,111,796,677.56/831,137.12
  6. Step 6: Final answer
    x = 393,571.40

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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.