Home / 863,136.90-1,294,705.35-443,232.90

Finding the Fourth Proportional to 863,136.90, 1,294,705.35 and 443,232.90

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Solution

The fourth proportional to 863,136.90, 1,294,705.35 and 443,232.90 is: 664,849.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,136.90 : 1,294,705.35 = 443,232.90 : x
  2. Step 2: Convert to fraction form
    863,136.90/1,294,705.35 = 443,232.90/x
  3. Step 3: Cross multiply
    863,136.90x = 1,294,705.35 × 443,232.90
  4. Step 4: Simplify right side
    863,136.90x = 573,856,006,926.02
  5. Step 5: Solve for x
    x = 573,856,006,926.02/863,136.90
  6. Step 6: Final answer
    x = 664,849.35

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Half scale
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Double scale
Find fourth proportional to 863,137.90, 1,294,706.85 and 443,233.90
Similar ratio
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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.