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Finding the Fourth Proportional to 334,420.60, 501,630.90 and 156,945.55

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Solution

The fourth proportional to 334,420.60, 501,630.90 and 156,945.55 is: 235,418.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,420.60 : 501,630.90 = 156,945.55 : x
  2. Step 2: Convert to fraction form
    334,420.60/501,630.90 = 156,945.55/x
  3. Step 3: Cross multiply
    334,420.60x = 501,630.90 × 156,945.55
  4. Step 4: Simplify right side
    334,420.60x = 78,728,737,497.50
  5. Step 5: Solve for x
    x = 78,728,737,497.50/334,420.60
  6. Step 6: Final answer
    x = 235,418.33

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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.