Home / 689,021.52-950,892.77-383,166.33

Finding the Fourth Proportional to 689,021.52, 950,892.77 and 383,166.33

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Solution

The fourth proportional to 689,021.52, 950,892.77 and 383,166.33 is: 528,793.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,021.52 : 950,892.77 = 383,166.33 : x
  2. Step 2: Convert to fraction form
    689,021.52/950,892.77 = 383,166.33/x
  3. Step 3: Cross multiply
    689,021.52x = 950,892.77 × 383,166.33
  4. Step 4: Simplify right side
    689,021.52x = 364,350,090,988.60
  5. Step 5: Solve for x
    x = 364,350,090,988.60/689,021.52
  6. Step 6: Final answer
    x = 528,793.49

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Double scale
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Similar ratio
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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.