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Finding the Fourth Proportional to 548,370.30, 756,745.83 and 306,650.10

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Solution

The fourth proportional to 548,370.30, 756,745.83 and 306,650.10 is: 423,174.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,370.30 : 756,745.83 = 306,650.10 : x
  2. Step 2: Convert to fraction form
    548,370.30/756,745.83 = 306,650.10/x
  3. Step 3: Cross multiply
    548,370.30x = 756,745.83 × 306,650.10
  4. Step 4: Simplify right side
    548,370.30x = 232,056,184,444.08
  5. Step 5: Solve for x
    x = 232,056,184,444.08/548,370.30
  6. Step 6: Final answer
    x = 423,174.24

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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.