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Finding the Fourth Proportional to 393,817.14, 543,131.73 and 332,858.16

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Solution

The fourth proportional to 393,817.14, 543,131.73 and 332,858.16 is: 459,060.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,817.14 : 543,131.73 = 332,858.16 : x
  2. Step 2: Convert to fraction form
    393,817.14/543,131.73 = 332,858.16/x
  3. Step 3: Cross multiply
    393,817.14x = 543,131.73 × 332,858.16
  4. Step 4: Simplify right side
    393,817.14x = 180,785,828,285.42
  5. Step 5: Solve for x
    x = 180,785,828,285.42/393,817.14
  6. Step 6: Final answer
    x = 459,060.34

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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.