Home / 470,788.11-649,691.82-255,928.59

Finding the Fourth Proportional to 470,788.11, 649,691.82 and 255,928.59

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Solution

The fourth proportional to 470,788.11, 649,691.82 and 255,928.59 is: 353,183.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,788.11 : 649,691.82 = 255,928.59 : x
  2. Step 2: Convert to fraction form
    470,788.11/649,691.82 = 255,928.59/x
  3. Step 3: Cross multiply
    470,788.11x = 649,691.82 × 255,928.59
  4. Step 4: Simplify right side
    470,788.11x = 166,274,711,427.13
  5. Step 5: Solve for x
    x = 166,274,711,427.13/470,788.11
  6. Step 6: Final answer
    x = 353,183.75

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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.