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Finding the Fourth Proportional to 373,394.57, 515,324.46 and 228,285.50

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Solution

The fourth proportional to 373,394.57, 515,324.46 and 228,285.50 is: 315,058.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,394.57 : 515,324.46 = 228,285.50 : x
  2. Step 2: Convert to fraction form
    373,394.57/515,324.46 = 228,285.50/x
  3. Step 3: Cross multiply
    373,394.57x = 515,324.46 × 228,285.50
  4. Step 4: Simplify right side
    373,394.57x = 117,641,099,436.71
  5. Step 5: Solve for x
    x = 117,641,099,436.71/373,394.57
  6. Step 6: Final answer
    x = 315,058.41

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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.