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Finding the Fourth Proportional to 408,581.00, 562,558.32 and 347,197.71

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Solution

The fourth proportional to 408,581.00, 562,558.32 and 347,197.71 is: 478,042.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,581.00 : 562,558.32 = 347,197.71 : x
  2. Step 2: Convert to fraction form
    408,581.00/562,558.32 = 347,197.71/x
  3. Step 3: Cross multiply
    408,581.00x = 562,558.32 × 347,197.71
  4. Step 4: Simplify right side
    408,581.00x = 195,318,960,445.45
  5. Step 5: Solve for x
    x = 195,318,960,445.45/408,581.00
  6. Step 6: Final answer
    x = 478,042.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.