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Finding the Fourth Proportional to 386,503.58, 533,380.44 and 233,520.50

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Solution

The fourth proportional to 386,503.58, 533,380.44 and 233,520.50 is: 322,261.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,503.58 : 533,380.44 = 233,520.50 : x
  2. Step 2: Convert to fraction form
    386,503.58/533,380.44 = 233,520.50/x
  3. Step 3: Cross multiply
    386,503.58x = 533,380.44 × 233,520.50
  4. Step 4: Simplify right side
    386,503.58x = 124,555,267,039.02
  5. Step 5: Solve for x
    x = 124,555,267,039.02/386,503.58
  6. Step 6: Final answer
    x = 322,261.61

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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.