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Finding the Fourth Proportional to 445,847.81, 668,378.05 and 341,134.25

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Solution

The fourth proportional to 445,847.81, 668,378.05 and 341,134.25 is: 511,400.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,847.81 : 668,378.05 = 341,134.25 : x
  2. Step 2: Convert to fraction form
    445,847.81/668,378.05 = 341,134.25/x
  3. Step 3: Cross multiply
    445,847.81x = 668,378.05 × 341,134.25
  4. Step 4: Simplify right side
    445,847.81x = 228,006,645,621.32
  5. Step 5: Solve for x
    x = 228,006,645,621.32/445,847.81
  6. Step 6: Final answer
    x = 511,400.17

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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.