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Finding the Fourth Proportional to 331,333.60, 457,108.81 and 191,606.39

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Solution

The fourth proportional to 331,333.60, 457,108.81 and 191,606.39 is: 264,340.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,333.60 : 457,108.81 = 191,606.39 : x
  2. Step 2: Convert to fraction form
    331,333.60/457,108.81 = 191,606.39/x
  3. Step 3: Cross multiply
    331,333.60x = 457,108.81 × 191,606.39
  4. Step 4: Simplify right side
    331,333.60x = 87,584,970,064.07
  5. Step 5: Solve for x
    x = 87,584,970,064.07/331,333.60
  6. Step 6: Final answer
    x = 264,340.74

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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.