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Finding the Fourth Proportional to 276,818.63, 382,009.68 and 149,494.20

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Solution

The fourth proportional to 276,818.63, 382,009.68 and 149,494.20 is: 206,301.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,818.63 : 382,009.68 = 149,494.20 : x
  2. Step 2: Convert to fraction form
    276,818.63/382,009.68 = 149,494.20/x
  3. Step 3: Cross multiply
    276,818.63x = 382,009.68 × 149,494.20
  4. Step 4: Simplify right side
    276,818.63x = 57,108,231,503.86
  5. Step 5: Solve for x
    x = 57,108,231,503.86/276,818.63
  6. Step 6: Final answer
    x = 206,301.98

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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.