Home / 639,174.76-882,023.94-352,694.20

Finding the Fourth Proportional to 639,174.76, 882,023.94 and 352,694.20

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Solution

The fourth proportional to 639,174.76, 882,023.94 and 352,694.20 is: 486,697.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,174.76 : 882,023.94 = 352,694.20 : x
  2. Step 2: Convert to fraction form
    639,174.76/882,023.94 = 352,694.20/x
  3. Step 3: Cross multiply
    639,174.76x = 882,023.94 × 352,694.20
  4. Step 4: Simplify right side
    639,174.76x = 311,084,727,899.15
  5. Step 5: Solve for x
    x = 311,084,727,899.15/639,174.76
  6. Step 6: Final answer
    x = 486,697.45

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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.