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Finding the Fourth Proportional to 621,286.66, 931,820.64 and 165,883.55

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Solution

The fourth proportional to 621,286.66, 931,820.64 and 165,883.55 is: 248,796.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,286.66 : 931,820.64 = 165,883.55 : x
  2. Step 2: Convert to fraction form
    621,286.66/931,820.64 = 165,883.55/x
  3. Step 3: Cross multiply
    621,286.66x = 931,820.64 × 165,883.55
  4. Step 4: Simplify right side
    621,286.66x = 154,573,715,726.47
  5. Step 5: Solve for x
    x = 154,573,715,726.47/621,286.66
  6. Step 6: Final answer
    x = 248,796.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.