Home / 518,499.93-777,749.89-163,622.73

Finding the Fourth Proportional to 518,499.93, 777,749.89 and 163,622.73

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Solution

The fourth proportional to 518,499.93, 777,749.89 and 163,622.73 is: 245,434.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,499.93 : 777,749.89 = 163,622.73 : x
  2. Step 2: Convert to fraction form
    518,499.93/777,749.89 = 163,622.73/x
  3. Step 3: Cross multiply
    518,499.93x = 777,749.89 × 163,622.73
  4. Step 4: Simplify right side
    518,499.93x = 127,257,555,961.19
  5. Step 5: Solve for x
    x = 127,257,555,961.19/518,499.93
  6. Step 6: Final answer
    x = 245,434.09

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.