Home / 939,918.90-1,297,111.59-510,198.54

Finding the Fourth Proportional to 939,918.90, 1,297,111.59 and 510,198.54

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Solution

The fourth proportional to 939,918.90, 1,297,111.59 and 510,198.54 is: 704,086.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,918.90 : 1,297,111.59 = 510,198.54 : x
  2. Step 2: Convert to fraction form
    939,918.90/1,297,111.59 = 510,198.54/x
  3. Step 3: Cross multiply
    939,918.90x = 1,297,111.59 × 510,198.54
  4. Step 4: Simplify right side
    939,918.90x = 661,784,439,435.08
  5. Step 5: Solve for x
    x = 661,784,439,435.08/939,918.90
  6. Step 6: Final answer
    x = 704,086.75

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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.