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Finding the Fourth Proportional to 400,656.01, 552,905.34 and 219,367.96

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Solution

The fourth proportional to 400,656.01, 552,905.34 and 219,367.96 is: 302,727.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,656.01 : 552,905.34 = 219,367.96 : x
  2. Step 2: Convert to fraction form
    400,656.01/552,905.34 = 219,367.96/x
  3. Step 3: Cross multiply
    400,656.01x = 552,905.34 × 219,367.96
  4. Step 4: Simplify right side
    400,656.01x = 121,289,716,508.91
  5. Step 5: Solve for x
    x = 121,289,716,508.91/400,656.01
  6. Step 6: Final answer
    x = 302,727.81

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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.