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Finding the Fourth Proportional to 472,456.60, 708,771.30 and 192,002.20

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Solution

The fourth proportional to 472,456.60, 708,771.30 and 192,002.20 is: 288,038.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,456.60 : 708,771.30 = 192,002.20 : x
  2. Step 2: Convert to fraction form
    472,456.60/708,771.30 = 192,002.20/x
  3. Step 3: Cross multiply
    472,456.60x = 708,771.30 × 192,002.20
  4. Step 4: Simplify right side
    472,456.60x = 136,085,648,896.86
  5. Step 5: Solve for x
    x = 136,085,648,896.86/472,456.60
  6. Step 6: Final answer
    x = 288,038.41

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1.5x scale

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.