Home / 831,611.96-1,247,571.80-263,136.16

Finding the Fourth Proportional to 831,611.96, 1,247,571.80 and 263,136.16

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Solution

The fourth proportional to 831,611.96, 1,247,571.80 and 263,136.16 is: 394,752.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,611.96 : 1,247,571.80 = 263,136.16 : x
  2. Step 2: Convert to fraction form
    831,611.96/1,247,571.80 = 263,136.16/x
  3. Step 3: Cross multiply
    831,611.96x = 1,247,571.80 × 263,136.16
  4. Step 4: Simplify right side
    831,611.96x = 328,281,252,776.29
  5. Step 5: Solve for x
    x = 328,281,252,776.29/831,611.96
  6. Step 6: Final answer
    x = 394,752.92

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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.