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Finding the Fourth Proportional to 462,847.48, 638,472.48 and 269,233.38

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Solution

The fourth proportional to 462,847.48, 638,472.48 and 269,233.38 is: 371,392.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,847.48 : 638,472.48 = 269,233.38 : x
  2. Step 2: Convert to fraction form
    462,847.48/638,472.48 = 269,233.38/x
  3. Step 3: Cross multiply
    462,847.48x = 638,472.48 × 269,233.38
  4. Step 4: Simplify right side
    462,847.48x = 171,898,103,827.38
  5. Step 5: Solve for x
    x = 171,898,103,827.38/462,847.48
  6. Step 6: Final answer
    x = 371,392.55

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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.