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Finding the Fourth Proportional to 625,778.04, 863,520.30 and 353,832.60

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Solution

The fourth proportional to 625,778.04, 863,520.30 and 353,832.60 is: 488,258.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,778.04 : 863,520.30 = 353,832.60 : x
  2. Step 2: Convert to fraction form
    625,778.04/863,520.30 = 353,832.60/x
  3. Step 3: Cross multiply
    625,778.04x = 863,520.30 × 353,832.60
  4. Step 4: Simplify right side
    625,778.04x = 305,541,632,901.78
  5. Step 5: Solve for x
    x = 305,541,632,901.78/625,778.04
  6. Step 6: Final answer
    x = 488,258.80

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1.5x scale

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.