Home / 689,766.09-951,793.65-383,770.23

Finding the Fourth Proportional to 689,766.09, 951,793.65 and 383,770.23

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Solution

The fourth proportional to 689,766.09, 951,793.65 and 383,770.23 is: 529,556.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,766.09 : 951,793.65 = 383,770.23 : x
  2. Step 2: Convert to fraction form
    689,766.09/951,793.65 = 383,770.23/x
  3. Step 3: Cross multiply
    689,766.09x = 951,793.65 × 383,770.23
  4. Step 4: Simplify right side
    689,766.09x = 365,270,067,973.04
  5. Step 5: Solve for x
    x = 365,270,067,973.04/689,766.09
  6. Step 6: Final answer
    x = 529,556.43

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Double scale
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1.5x scale

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.