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Finding the Fourth Proportional to 403,785.90, 604,512.45 and 246,321.90

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Solution

The fourth proportional to 403,785.90, 604,512.45 and 246,321.90 is: 368,771.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,785.90 : 604,512.45 = 246,321.90 : x
  2. Step 2: Convert to fraction form
    403,785.90/604,512.45 = 246,321.90/x
  3. Step 3: Cross multiply
    403,785.90x = 604,512.45 × 246,321.90
  4. Step 4: Simplify right side
    403,785.90x = 148,904,655,257.66
  5. Step 5: Solve for x
    x = 148,904,655,257.66/403,785.90
  6. Step 6: Final answer
    x = 368,771.31

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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.