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Finding the Fourth Proportional to 331,338.59, 457,220.29 and 186,136.48

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Solution

The fourth proportional to 331,338.59, 457,220.29 and 186,136.48 is: 256,853.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,338.59 : 457,220.29 = 186,136.48 : x
  2. Step 2: Convert to fraction form
    331,338.59/457,220.29 = 186,136.48/x
  3. Step 3: Cross multiply
    331,338.59x = 457,220.29 × 186,136.48
  4. Step 4: Simplify right side
    331,338.59x = 85,105,372,148.40
  5. Step 5: Solve for x
    x = 85,105,372,148.40/331,338.59
  6. Step 6: Final answer
    x = 256,853.18

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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.