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Finding the Fourth Proportional to 393,729.53, 590,680.41 and 127,516.95

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Solution

The fourth proportional to 393,729.53, 590,680.41 and 127,516.95 is: 191,303.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,729.53 : 590,680.41 = 127,516.95 : x
  2. Step 2: Convert to fraction form
    393,729.53/590,680.41 = 127,516.95/x
  3. Step 3: Cross multiply
    393,729.53x = 590,680.41 × 127,516.95
  4. Step 4: Simplify right side
    393,729.53x = 75,321,764,307.95
  5. Step 5: Solve for x
    x = 75,321,764,307.95/393,729.53
  6. Step 6: Final answer
    x = 191,303.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.