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Finding the Fourth Proportional to 556,608.66, 768,122.16 and 301,961.64

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Solution

The fourth proportional to 556,608.66, 768,122.16 and 301,961.64 is: 416,708.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,608.66 : 768,122.16 = 301,961.64 : x
  2. Step 2: Convert to fraction form
    556,608.66/768,122.16 = 301,961.64/x
  3. Step 3: Cross multiply
    556,608.66x = 768,122.16 × 301,961.64
  4. Step 4: Simplify right side
    556,608.66x = 231,943,427,153.94
  5. Step 5: Solve for x
    x = 231,943,427,153.94/556,608.66
  6. Step 6: Final answer
    x = 416,708.26

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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.