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Finding the Fourth Proportional to 613,065.36, 846,146.92 and 383,729.52

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Solution

The fourth proportional to 613,065.36, 846,146.92 and 383,729.52 is: 529,619.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,065.36 : 846,146.92 = 383,729.52 : x
  2. Step 2: Convert to fraction form
    613,065.36/846,146.92 = 383,729.52/x
  3. Step 3: Cross multiply
    613,065.36x = 846,146.92 × 383,729.52
  4. Step 4: Simplify right side
    613,065.36x = 324,691,551,461.08
  5. Step 5: Solve for x
    x = 324,691,551,461.08/613,065.36
  6. Step 6: Final answer
    x = 529,619.80

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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.