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Finding the Fourth Proportional to 556,625.26, 768,143.13 and 301,976.38

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Solution

The fourth proportional to 556,625.26, 768,143.13 and 301,976.38 is: 416,727.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,625.26 : 768,143.13 = 301,976.38 : x
  2. Step 2: Convert to fraction form
    556,625.26/768,143.13 = 301,976.38/x
  3. Step 3: Cross multiply
    556,625.26x = 768,143.13 × 301,976.38
  4. Step 4: Simplify right side
    556,625.26x = 231,961,077,878.55
  5. Step 5: Solve for x
    x = 231,961,077,878.55/556,625.26
  6. Step 6: Final answer
    x = 416,727.55

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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.