Home / 436,125.80-654,188.70-408,132.20

Finding the Fourth Proportional to 436,125.80, 654,188.70 and 408,132.20

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Solution

The fourth proportional to 436,125.80, 654,188.70 and 408,132.20 is: 612,198.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,125.80 : 654,188.70 = 408,132.20 : x
  2. Step 2: Convert to fraction form
    436,125.80/654,188.70 = 408,132.20/x
  3. Step 3: Cross multiply
    436,125.80x = 654,188.70 × 408,132.20
  4. Step 4: Simplify right side
    436,125.80x = 266,995,473,346.14
  5. Step 5: Solve for x
    x = 266,995,473,346.14/436,125.80
  6. Step 6: Final answer
    x = 612,198.30

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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.