Home / 939,858.38-1,297,005.86-510,138.60

Finding the Fourth Proportional to 939,858.38, 1,297,005.86 and 510,138.60

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Solution

The fourth proportional to 939,858.38, 1,297,005.86 and 510,138.60 is: 703,991.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,858.38 : 1,297,005.86 = 510,138.60 : x
  2. Step 2: Convert to fraction form
    939,858.38/1,297,005.86 = 510,138.60/x
  3. Step 3: Cross multiply
    939,858.38x = 1,297,005.86 × 510,138.60
  4. Step 4: Simplify right side
    939,858.38x = 661,652,753,612.20
  5. Step 5: Solve for x
    x = 661,652,753,612.20/939,858.38
  6. Step 6: Final answer
    x = 703,991.97

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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.