Home / 1,989,736.59-2,985,186.24-641,869.44

Finding the Fourth Proportional to 1,989,736.59, 2,985,186.24 and 641,869.44

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Solution

The fourth proportional to 1,989,736.59, 2,985,186.24 and 641,869.44 is: 962,991.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,736.59 : 2,985,186.24 = 641,869.44 : x
  2. Step 2: Convert to fraction form
    1,989,736.59/2,985,186.24 = 641,869.44/x
  3. Step 3: Cross multiply
    1,989,736.59x = 2,985,186.24 × 641,869.44
  4. Step 4: Simplify right side
    1,989,736.59x = 1,916,099,820,164.51
  5. Step 5: Solve for x
    x = 1,916,099,820,164.51/1,989,736.59
  6. Step 6: Final answer
    x = 962,991.70

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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.