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Finding the Fourth Proportional to 393,851.82, 543,491.56 and 232,668.30

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Solution

The fourth proportional to 393,851.82, 543,491.56 and 232,668.30 is: 321,068.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,851.82 : 543,491.56 = 232,668.30 : x
  2. Step 2: Convert to fraction form
    393,851.82/543,491.56 = 232,668.30/x
  3. Step 3: Cross multiply
    393,851.82x = 543,491.56 × 232,668.30
  4. Step 4: Simplify right side
    393,851.82x = 126,453,257,329.55
  5. Step 5: Solve for x
    x = 126,453,257,329.55/393,851.82
  6. Step 6: Final answer
    x = 321,068.10

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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.