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Finding the Fourth Proportional to 693,383.44, 956,850.76 and 387,462.33

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Solution

The fourth proportional to 693,383.44, 956,850.76 and 387,462.33 is: 534,687.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,383.44 : 956,850.76 = 387,462.33 : x
  2. Step 2: Convert to fraction form
    693,383.44/956,850.76 = 387,462.33/x
  3. Step 3: Cross multiply
    693,383.44x = 956,850.76 × 387,462.33
  4. Step 4: Simplify right side
    693,383.44x = 370,743,626,613.09
  5. Step 5: Solve for x
    x = 370,743,626,613.09/693,383.44
  6. Step 6: Final answer
    x = 534,687.74

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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.