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Finding the Fourth Proportional to 397,794.52, 548,948.77 and 216,510.44

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Solution

The fourth proportional to 397,794.52, 548,948.77 and 216,510.44 is: 298,780.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,794.52 : 548,948.77 = 216,510.44 : x
  2. Step 2: Convert to fraction form
    397,794.52/548,948.77 = 216,510.44/x
  3. Step 3: Cross multiply
    397,794.52x = 548,948.77 × 216,510.44
  4. Step 4: Simplify right side
    397,794.52x = 118,853,140,561.26
  5. Step 5: Solve for x
    x = 118,853,140,561.26/397,794.52
  6. Step 6: Final answer
    x = 298,780.24

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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.