Home / 639,543.08-882,546.31-353,057.01

Finding the Fourth Proportional to 639,543.08, 882,546.31 and 353,057.01

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Solution

The fourth proportional to 639,543.08, 882,546.31 and 353,057.01 is: 487,205.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,543.08 : 882,546.31 = 353,057.01 : x
  2. Step 2: Convert to fraction form
    639,543.08/882,546.31 = 353,057.01/x
  3. Step 3: Cross multiply
    639,543.08x = 882,546.31 × 353,057.01
  4. Step 4: Simplify right side
    639,543.08x = 311,589,160,512.49
  5. Step 5: Solve for x
    x = 311,589,160,512.49/639,543.08
  6. Step 6: Final answer
    x = 487,205.90

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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.