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Finding the Fourth Proportional to 501,576.86, 751,785.60 and 231,139.64

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Solution

The fourth proportional to 501,576.86, 751,785.60 and 231,139.64 is: 346,442.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,576.86 : 751,785.60 = 231,139.64 : x
  2. Step 2: Convert to fraction form
    501,576.86/751,785.60 = 231,139.64/x
  3. Step 3: Cross multiply
    501,576.86x = 751,785.60 × 231,139.64
  4. Step 4: Simplify right side
    501,576.86x = 173,767,452,941.18
  5. Step 5: Solve for x
    x = 173,767,452,941.18/501,576.86
  6. Step 6: Final answer
    x = 346,442.32

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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.