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Finding the Fourth Proportional to 354,879.10, 531,443.85 and 235,906.30

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Solution

The fourth proportional to 354,879.10, 531,443.85 and 235,906.30 is: 353,277.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,879.10 : 531,443.85 = 235,906.30 : x
  2. Step 2: Convert to fraction form
    354,879.10/531,443.85 = 235,906.30/x
  3. Step 3: Cross multiply
    354,879.10x = 531,443.85 × 235,906.30
  4. Step 4: Simplify right side
    354,879.10x = 125,370,952,311.26
  5. Step 5: Solve for x
    x = 125,370,952,311.26/354,879.10
  6. Step 6: Final answer
    x = 353,277.93

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1.5x scale

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.