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Finding the Fourth Proportional to 555,915.37, 767,163.87 and 301,266.56

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Solution

The fourth proportional to 555,915.37, 767,163.87 and 301,266.56 is: 415,748.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,915.37 : 767,163.87 = 301,266.56 : x
  2. Step 2: Convert to fraction form
    555,915.37/767,163.87 = 301,266.56/x
  3. Step 3: Cross multiply
    555,915.37x = 767,163.87 × 301,266.56
  4. Step 4: Simplify right side
    555,915.37x = 231,120,820,071.19
  5. Step 5: Solve for x
    x = 231,120,820,071.19/555,915.37
  6. Step 6: Final answer
    x = 415,748.21

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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.