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Finding the Fourth Proportional to 394,518.30, 590,999.85 and 236,276.70

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Solution

The fourth proportional to 394,518.30, 590,999.85 and 236,276.70 is: 353,949.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,518.30 : 590,999.85 = 236,276.70 : x
  2. Step 2: Convert to fraction form
    394,518.30/590,999.85 = 236,276.70/x
  3. Step 3: Cross multiply
    394,518.30x = 590,999.85 × 236,276.70
  4. Step 4: Simplify right side
    394,518.30x = 139,639,494,258.50
  5. Step 5: Solve for x
    x = 139,639,494,258.50/394,518.30
  6. Step 6: Final answer
    x = 353,949.35

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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.