Home / 831,560.78-1,247,330.23-200,469.53

Finding the Fourth Proportional to 831,560.78, 1,247,330.23 and 200,469.53

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Solution

The fourth proportional to 831,560.78, 1,247,330.23 and 200,469.53 is: 300,701.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,560.78 : 1,247,330.23 = 200,469.53 : x
  2. Step 2: Convert to fraction form
    831,560.78/1,247,330.23 = 200,469.53/x
  3. Step 3: Cross multiply
    831,560.78x = 1,247,330.23 × 200,469.53
  4. Step 4: Simplify right side
    831,560.78x = 250,051,704,962.89
  5. Step 5: Solve for x
    x = 250,051,704,962.89/831,560.78
  6. Step 6: Final answer
    x = 300,701.66

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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.