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Finding the Fourth Proportional to 542,900.55, 749,203.62 and 301,183.11

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Solution

The fourth proportional to 542,900.55, 749,203.62 and 301,183.11 is: 415,633.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,900.55 : 749,203.62 = 301,183.11 : x
  2. Step 2: Convert to fraction form
    542,900.55/749,203.62 = 301,183.11/x
  3. Step 3: Cross multiply
    542,900.55x = 749,203.62 × 301,183.11
  4. Step 4: Simplify right side
    542,900.55x = 225,647,476,294.86
  5. Step 5: Solve for x
    x = 225,647,476,294.86/542,900.55
  6. Step 6: Final answer
    x = 415,633.17

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1.5x scale

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.