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Finding the Fourth Proportional to 463,572.80, 694,552.80 and 213,742.40

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Solution

The fourth proportional to 463,572.80, 694,552.80 and 213,742.40 is: 320,241.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,572.80 : 694,552.80 = 213,742.40 : x
  2. Step 2: Convert to fraction form
    463,572.80/694,552.80 = 213,742.40/x
  3. Step 3: Cross multiply
    463,572.80x = 694,552.80 × 213,742.40
  4. Step 4: Simplify right side
    463,572.80x = 148,455,382,398.72
  5. Step 5: Solve for x
    x = 148,455,382,398.72/463,572.80
  6. Step 6: Final answer
    x = 320,241.79

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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.