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Finding the Fourth Proportional to 415,556.26, 623,334.49 and 100,013.13

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Solution

The fourth proportional to 415,556.26, 623,334.49 and 100,013.13 is: 150,019.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,556.26 : 623,334.49 = 100,013.13 : x
  2. Step 2: Convert to fraction form
    415,556.26/623,334.49 = 100,013.13/x
  3. Step 3: Cross multiply
    415,556.26x = 623,334.49 × 100,013.13
  4. Step 4: Simplify right side
    415,556.26x = 62,341,633,131.82
  5. Step 5: Solve for x
    x = 62,341,633,131.82/415,556.26
  6. Step 6: Final answer
    x = 150,019.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.