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Finding the Fourth Proportional to 393,899.73, 543,033.54 and 332,898.84

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Solution

The fourth proportional to 393,899.73, 543,033.54 and 332,898.84 is: 458,937.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,899.73 : 543,033.54 = 332,898.84 : x
  2. Step 2: Convert to fraction form
    393,899.73/543,033.54 = 332,898.84/x
  3. Step 3: Cross multiply
    393,899.73x = 543,033.54 × 332,898.84
  4. Step 4: Simplify right side
    393,899.73x = 180,775,235,547.09
  5. Step 5: Solve for x
    x = 180,775,235,547.09/393,899.73
  6. Step 6: Final answer
    x = 458,937.19

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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.