Home / 619,121.37-928,682.26-408,710.10

Finding the Fourth Proportional to 619,121.37, 928,682.26 and 408,710.10

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Solution

The fourth proportional to 619,121.37, 928,682.26 and 408,710.10 is: 613,065.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,121.37 : 928,682.26 = 408,710.10 : x
  2. Step 2: Convert to fraction form
    619,121.37/928,682.26 = 408,710.10/x
  3. Step 3: Cross multiply
    619,121.37x = 928,682.26 × 408,710.10
  4. Step 4: Simplify right side
    619,121.37x = 379,561,819,352.83
  5. Step 5: Solve for x
    x = 379,561,819,352.83/619,121.37
  6. Step 6: Final answer
    x = 613,065.29

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Double scale
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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.