Home / 619,823.46-929,412.60-220,406.19

Finding the Fourth Proportional to 619,823.46, 929,412.60 and 220,406.19

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Solution

The fourth proportional to 619,823.46, 929,412.60 and 220,406.19 is: 330,494.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,823.46 : 929,412.60 = 220,406.19 : x
  2. Step 2: Convert to fraction form
    619,823.46/929,412.60 = 220,406.19/x
  3. Step 3: Cross multiply
    619,823.46x = 929,412.60 × 220,406.19
  4. Step 4: Simplify right side
    619,823.46x = 204,848,290,103.99
  5. Step 5: Solve for x
    x = 204,848,290,103.99/619,823.46
  6. Step 6: Final answer
    x = 330,494.57

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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.