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Finding the Fourth Proportional to 397,275.96, 548,251.59 and 216,000.07

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Solution

The fourth proportional to 397,275.96, 548,251.59 and 216,000.07 is: 298,085.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,275.96 : 548,251.59 = 216,000.07 : x
  2. Step 2: Convert to fraction form
    397,275.96/548,251.59 = 216,000.07/x
  3. Step 3: Cross multiply
    397,275.96x = 548,251.59 × 216,000.07
  4. Step 4: Simplify right side
    397,275.96x = 118,422,381,817.61
  5. Step 5: Solve for x
    x = 118,422,381,817.61/397,275.96
  6. Step 6: Final answer
    x = 298,085.95

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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.