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Finding the Fourth Proportional to 569,676.78, 786,250.62 and 328,099.21

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Solution

The fourth proportional to 569,676.78, 786,250.62 and 328,099.21 is: 452,832.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,676.78 : 786,250.62 = 328,099.21 : x
  2. Step 2: Convert to fraction form
    569,676.78/786,250.62 = 328,099.21/x
  3. Step 3: Cross multiply
    569,676.78x = 786,250.62 × 328,099.21
  4. Step 4: Simplify right side
    569,676.78x = 257,968,207,284.01
  5. Step 5: Solve for x
    x = 257,968,207,284.01/569,676.78
  6. Step 6: Final answer
    x = 452,832.58

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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.