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Finding the Fourth Proportional to 531,235.60, 796,853.40 and 198,768.40

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Solution

The fourth proportional to 531,235.60, 796,853.40 and 198,768.40 is: 298,152.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,235.60 : 796,853.40 = 198,768.40 : x
  2. Step 2: Convert to fraction form
    531,235.60/796,853.40 = 198,768.40/x
  3. Step 3: Cross multiply
    531,235.60x = 796,853.40 × 198,768.40
  4. Step 4: Simplify right side
    531,235.60x = 158,389,275,352.56
  5. Step 5: Solve for x
    x = 158,389,275,352.56/531,235.60
  6. Step 6: Final answer
    x = 298,152.60

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Double scale
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Similar ratio
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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.