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Finding the Fourth Proportional to 362,047.60, 543,071.40 and 261,996.40

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Solution

The fourth proportional to 362,047.60, 543,071.40 and 261,996.40 is: 392,994.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,047.60 : 543,071.40 = 261,996.40 : x
  2. Step 2: Convert to fraction form
    362,047.60/543,071.40 = 261,996.40/x
  3. Step 3: Cross multiply
    362,047.60x = 543,071.40 × 261,996.40
  4. Step 4: Simplify right side
    362,047.60x = 142,282,751,742.96
  5. Step 5: Solve for x
    x = 142,282,751,742.96/362,047.60
  6. Step 6: Final answer
    x = 392,994.60

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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.