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Finding the Fourth Proportional to 467,155.72, 644,674.84 and 252,295.80

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Solution

The fourth proportional to 467,155.72, 644,674.84 and 252,295.80 is: 348,168.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,155.72 : 644,674.84 = 252,295.80 : x
  2. Step 2: Convert to fraction form
    467,155.72/644,674.84 = 252,295.80/x
  3. Step 3: Cross multiply
    467,155.72x = 644,674.84 × 252,295.80
  4. Step 4: Simplify right side
    467,155.72x = 162,648,754,497.67
  5. Step 5: Solve for x
    x = 162,648,754,497.67/467,155.72
  6. Step 6: Final answer
    x = 348,168.18

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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.