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Finding the Fourth Proportional to 400,087.62, 552,742.60 and 335,456.66

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Solution

The fourth proportional to 400,087.62, 552,742.60 and 335,456.66 is: 463,451.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,087.62 : 552,742.60 = 335,456.66 : x
  2. Step 2: Convert to fraction form
    400,087.62/552,742.60 = 335,456.66/x
  3. Step 3: Cross multiply
    400,087.62x = 552,742.60 × 335,456.66
  4. Step 4: Simplify right side
    400,087.62x = 185,421,186,435.72
  5. Step 5: Solve for x
    x = 185,421,186,435.72/400,087.62
  6. Step 6: Final answer
    x = 463,451.45

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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.