Home / 638,749.32-957,960.48-189,365.16

Finding the Fourth Proportional to 638,749.32, 957,960.48 and 189,365.16

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Solution

The fourth proportional to 638,749.32, 957,960.48 and 189,365.16 is: 283,999.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,749.32 : 957,960.48 = 189,365.16 : x
  2. Step 2: Convert to fraction form
    638,749.32/957,960.48 = 189,365.16/x
  3. Step 3: Cross multiply
    638,749.32x = 957,960.48 × 189,365.16
  4. Step 4: Simplify right side
    638,749.32x = 181,404,339,568.88
  5. Step 5: Solve for x
    x = 181,404,339,568.88/638,749.32
  6. Step 6: Final answer
    x = 283,999.27

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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.