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Finding the Fourth Proportional to 397,293.72, 548,276.09 and 216,017.82

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Solution

The fourth proportional to 397,293.72, 548,276.09 and 216,017.82 is: 298,110.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,293.72 : 548,276.09 = 216,017.82 : x
  2. Step 2: Convert to fraction form
    397,293.72/548,276.09 = 216,017.82/x
  3. Step 3: Cross multiply
    397,293.72x = 548,276.09 × 216,017.82
  4. Step 4: Simplify right side
    397,293.72x = 118,437,404,639.84
  5. Step 5: Solve for x
    x = 118,437,404,639.84/397,293.72
  6. Step 6: Final answer
    x = 298,110.44

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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.