Home / 662,136.38-993,444.33-409,121.54

Finding the Fourth Proportional to 662,136.38, 993,444.33 and 409,121.54

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Solution

The fourth proportional to 662,136.38, 993,444.33 and 409,121.54 is: 613,830.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,136.38 : 993,444.33 = 409,121.54 : x
  2. Step 2: Convert to fraction form
    662,136.38/993,444.33 = 409,121.54/x
  3. Step 3: Cross multiply
    662,136.38x = 993,444.33 × 409,121.54
  4. Step 4: Simplify right side
    662,136.38x = 406,439,474,193.87
  5. Step 5: Solve for x
    x = 406,439,474,193.87/662,136.38
  6. Step 6: Final answer
    x = 613,830.45

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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.