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Finding the Fourth Proportional to 703,056.80, 1,054,930.80 and 329,015.20

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Solution

The fourth proportional to 703,056.80, 1,054,930.80 and 329,015.20 is: 493,684.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,056.80 : 1,054,930.80 = 329,015.20 : x
  2. Step 2: Convert to fraction form
    703,056.80/1,054,930.80 = 329,015.20/x
  3. Step 3: Cross multiply
    703,056.80x = 1,054,930.80 × 329,015.20
  4. Step 4: Simplify right side
    703,056.80x = 347,088,268,148.16
  5. Step 5: Solve for x
    x = 347,088,268,148.16/703,056.80
  6. Step 6: Final answer
    x = 493,684.53

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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.