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Finding the Fourth Proportional to 375,221.46, 517,455.77 and 347,355.44

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Solution

The fourth proportional to 375,221.46, 517,455.77 and 347,355.44 is: 479,026.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,221.46 : 517,455.77 = 347,355.44 : x
  2. Step 2: Convert to fraction form
    375,221.46/517,455.77 = 347,355.44/x
  3. Step 3: Cross multiply
    375,221.46x = 517,455.77 × 347,355.44
  4. Step 4: Simplify right side
    375,221.46x = 179,741,072,344.83
  5. Step 5: Solve for x
    x = 179,741,072,344.83/375,221.46
  6. Step 6: Final answer
    x = 479,026.63

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1.5x scale

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.