Home / 919,217.58-1,378,449.09-350,805.66

Finding the Fourth Proportional to 919,217.58, 1,378,449.09 and 350,805.66

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Solution

The fourth proportional to 919,217.58, 1,378,449.09 and 350,805.66 is: 526,064.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,217.58 : 1,378,449.09 = 350,805.66 : x
  2. Step 2: Convert to fraction form
    919,217.58/1,378,449.09 = 350,805.66/x
  3. Step 3: Cross multiply
    919,217.58x = 1,378,449.09 × 350,805.66
  4. Step 4: Simplify right side
    919,217.58x = 483,567,742,793.85
  5. Step 5: Solve for x
    x = 483,567,742,793.85/919,217.58
  6. Step 6: Final answer
    x = 526,064.51

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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.