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Finding the Fourth Proportional to 363,633.16, 501,556.67 and 315,147.38

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Solution

The fourth proportional to 363,633.16, 501,556.67 and 315,147.38 is: 434,680.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,633.16 : 501,556.67 = 315,147.38 : x
  2. Step 2: Convert to fraction form
    363,633.16/501,556.67 = 315,147.38/x
  3. Step 3: Cross multiply
    363,633.16x = 501,556.67 × 315,147.38
  4. Step 4: Simplify right side
    363,633.16x = 158,064,270,472.03
  5. Step 5: Solve for x
    x = 158,064,270,472.03/363,633.16
  6. Step 6: Final answer
    x = 434,680.57

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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.