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Finding the Fourth Proportional to 467,220, 644,763.68 and 255,252

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Solution

The fourth proportional to 467,220, 644,763.68 and 255,252 is: 352,247.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,220 : 644,763.68 = 255,252 : x
  2. Step 2: Convert to fraction form
    467,220/644,763.68 = 255,252/x
  3. Step 3: Cross multiply
    467,220x = 644,763.68 × 255,252
  4. Step 4: Simplify right side
    467,220x = 164,577,218,847.36
  5. Step 5: Solve for x
    x = 164,577,218,847.36/467,220
  6. Step 6: Final answer
    x = 352,247.80

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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.