Home / 639,291.44-882,234.48-352,805.38

Finding the Fourth Proportional to 639,291.44, 882,234.48 and 352,805.38

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Solution

The fourth proportional to 639,291.44, 882,234.48 and 352,805.38 is: 486,878.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,291.44 : 882,234.48 = 352,805.38 : x
  2. Step 2: Convert to fraction form
    639,291.44/882,234.48 = 352,805.38/x
  3. Step 3: Cross multiply
    639,291.44x = 882,234.48 × 352,805.38
  4. Step 4: Simplify right side
    639,291.44x = 311,257,070,965.50
  5. Step 5: Solve for x
    x = 311,257,070,965.50/639,291.44
  6. Step 6: Final answer
    x = 486,878.21

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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.