Home / 851,133.62-1,174,564.10-469,166.78

Finding the Fourth Proportional to 851,133.62, 1,174,564.10 and 469,166.78

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Solution

The fourth proportional to 851,133.62, 1,174,564.10 and 469,166.78 is: 647,449.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,133.62 : 1,174,564.10 = 469,166.78 : x
  2. Step 2: Convert to fraction form
    851,133.62/1,174,564.10 = 469,166.78/x
  3. Step 3: Cross multiply
    851,133.62x = 1,174,564.10 × 469,166.78
  4. Step 4: Simplify right side
    851,133.62x = 551,066,448,481.94
  5. Step 5: Solve for x
    x = 551,066,448,481.94/851,133.62
  6. Step 6: Final answer
    x = 647,449.99

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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.