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Finding the Fourth Proportional to 455,241.48, 628,233.37 and 251,292.53

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Solution

The fourth proportional to 455,241.48, 628,233.37 and 251,292.53 is: 346,783.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,241.48 : 628,233.37 = 251,292.53 : x
  2. Step 2: Convert to fraction form
    455,241.48/628,233.37 = 251,292.53/x
  3. Step 3: Cross multiply
    455,241.48x = 628,233.37 × 251,292.53
  4. Step 4: Simplify right side
    455,241.48x = 157,870,353,920.08
  5. Step 5: Solve for x
    x = 157,870,353,920.08/455,241.48
  6. Step 6: Final answer
    x = 346,783.76

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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.