Home / 400,910.47-553,256.62-219,628.96

Finding the Fourth Proportional to 400,910.47, 553,256.62 and 219,628.96

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Solution

The fourth proportional to 400,910.47, 553,256.62 and 219,628.96 is: 303,088.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,910.47 : 553,256.62 = 219,628.96 : x
  2. Step 2: Convert to fraction form
    400,910.47/553,256.62 = 219,628.96/x
  3. Step 3: Cross multiply
    400,910.47x = 553,256.62 × 219,628.96
  4. Step 4: Simplify right side
    400,910.47x = 121,511,174,131.50
  5. Step 5: Solve for x
    x = 121,511,174,131.50/400,910.47
  6. Step 6: Final answer
    x = 303,088.06

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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.