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Finding the Fourth Proportional to 397,348.48, 548,333.13 and 216,058.82

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Solution

The fourth proportional to 397,348.48, 548,333.13 and 216,058.82 is: 298,156.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,348.48 : 548,333.13 = 216,058.82 : x
  2. Step 2: Convert to fraction form
    397,348.48/548,333.13 = 216,058.82/x
  3. Step 3: Cross multiply
    397,348.48x = 548,333.13 × 216,058.82
  4. Step 4: Simplify right side
    397,348.48x = 118,472,209,034.71
  5. Step 5: Solve for x
    x = 118,472,209,034.71/397,348.48
  6. Step 6: Final answer
    x = 298,156.95

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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.