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Finding the Fourth Proportional to 397,337.31, 548,332.32 and 216,050.46

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Solution

The fourth proportional to 397,337.31, 548,332.32 and 216,050.46 is: 298,153.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,337.31 : 548,332.32 = 216,050.46 : x
  2. Step 2: Convert to fraction form
    397,337.31/548,332.32 = 216,050.46/x
  3. Step 3: Cross multiply
    397,337.31x = 548,332.32 × 216,050.46
  4. Step 4: Simplify right side
    397,337.31x = 118,467,449,968.87
  5. Step 5: Solve for x
    x = 118,467,449,968.87/397,337.31
  6. Step 6: Final answer
    x = 298,153.35

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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.