Home / 851,132.40-1,174,556.61-469,158.54

Finding the Fourth Proportional to 851,132.40, 1,174,556.61 and 469,158.54

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Solution

The fourth proportional to 851,132.40, 1,174,556.61 and 469,158.54 is: 647,435.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,132.40 : 1,174,556.61 = 469,158.54 : x
  2. Step 2: Convert to fraction form
    851,132.40/1,174,556.61 = 469,158.54/x
  3. Step 3: Cross multiply
    851,132.40x = 1,174,556.61 × 469,158.54
  4. Step 4: Simplify right side
    851,132.40x = 551,053,264,294.95
  5. Step 5: Solve for x
    x = 551,053,264,294.95/851,132.40
  6. Step 6: Final answer
    x = 647,435.42

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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.