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Finding the Fourth Proportional to 441,796.40, 662,694.60 and 392,807.60

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Solution

The fourth proportional to 441,796.40, 662,694.60 and 392,807.60 is: 589,211.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,796.40 : 662,694.60 = 392,807.60 : x
  2. Step 2: Convert to fraction form
    441,796.40/662,694.60 = 392,807.60/x
  3. Step 3: Cross multiply
    441,796.40x = 662,694.60 × 392,807.60
  4. Step 4: Simplify right side
    441,796.40x = 260,311,475,358.96
  5. Step 5: Solve for x
    x = 260,311,475,358.96/441,796.40
  6. Step 6: Final answer
    x = 589,211.40

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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.