Home / 639,550.22-882,556.11-353,064.15

Finding the Fourth Proportional to 639,550.22, 882,556.11 and 353,064.15

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Solution

The fourth proportional to 639,550.22, 882,556.11 and 353,064.15 is: 487,215.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,550.22 : 882,556.11 = 353,064.15 : x
  2. Step 2: Convert to fraction form
    639,550.22/882,556.11 = 353,064.15/x
  3. Step 3: Cross multiply
    639,550.22x = 882,556.11 × 353,064.15
  4. Step 4: Simplify right side
    639,550.22x = 311,598,922,804.46
  5. Step 5: Solve for x
    x = 311,598,922,804.46/639,550.22
  6. Step 6: Final answer
    x = 487,215.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.