Home / 691,136.55-953,777.97-385,204.41

Finding the Fourth Proportional to 691,136.55, 953,777.97 and 385,204.41

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Solution

The fourth proportional to 691,136.55, 953,777.97 and 385,204.41 is: 531,587.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,136.55 : 953,777.97 = 385,204.41 : x
  2. Step 2: Convert to fraction form
    691,136.55/953,777.97 = 385,204.41/x
  3. Step 3: Cross multiply
    691,136.55x = 953,777.97 × 385,204.41
  4. Step 4: Simplify right side
    691,136.55x = 367,399,480,204.85
  5. Step 5: Solve for x
    x = 367,399,480,204.85/691,136.55
  6. Step 6: Final answer
    x = 531,587.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.