Home / 1,918,991.25-2,878,501.46-656,829.81

Finding the Fourth Proportional to 1,918,991.25, 2,878,501.46 and 656,829.81

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Solution

The fourth proportional to 1,918,991.25, 2,878,501.46 and 656,829.81 is: 985,249.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,991.25 : 2,878,501.46 = 656,829.81 : x
  2. Step 2: Convert to fraction form
    1,918,991.25/2,878,501.46 = 656,829.81/x
  3. Step 3: Cross multiply
    1,918,991.25x = 2,878,501.46 × 656,829.81
  4. Step 4: Simplify right side
    1,918,991.25x = 1,890,685,563,772.37
  5. Step 5: Solve for x
    x = 1,890,685,563,772.37/1,918,991.25
  6. Step 6: Final answer
    x = 985,249.71

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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.