Home / 400,456.17-552,622.14-219,164.49

Finding the Fourth Proportional to 400,456.17, 552,622.14 and 219,164.49

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Solution

The fourth proportional to 400,456.17, 552,622.14 and 219,164.49 is: 302,442.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,456.17 : 552,622.14 = 219,164.49 : x
  2. Step 2: Convert to fraction form
    400,456.17/552,622.14 = 219,164.49/x
  3. Step 3: Cross multiply
    400,456.17x = 552,622.14 × 219,164.49
  4. Step 4: Simplify right side
    400,456.17x = 121,115,149,475.81
  5. Step 5: Solve for x
    x = 121,115,149,475.81/400,456.17
  6. Step 6: Final answer
    x = 302,442.96

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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.