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Finding the Fourth Proportional to 397,302.60, 548,288.28 and 216,026.76

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Solution

The fourth proportional to 397,302.60, 548,288.28 and 216,026.76 is: 298,122.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,302.60 : 548,288.28 = 216,026.76 : x
  2. Step 2: Convert to fraction form
    397,302.60/548,288.28 = 216,026.76/x
  3. Step 3: Cross multiply
    397,302.60x = 548,288.28 × 216,026.76
  4. Step 4: Simplify right side
    397,302.60x = 118,444,940,674.37
  5. Step 5: Solve for x
    x = 118,444,940,674.37/397,302.60
  6. Step 6: Final answer
    x = 298,122.74

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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.