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Finding the Fourth Proportional to 3,364.52, 5,047.00 and 899.28

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Solution

The fourth proportional to 3,364.52, 5,047.00 and 899.28 is: 1,348.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,364.52 : 5,047.00 = 899.28 : x
  2. Step 2: Convert to fraction form
    3,364.52/5,047.00 = 899.28/x
  3. Step 3: Cross multiply
    3,364.52x = 5,047.00 × 899.28
  4. Step 4: Simplify right side
    3,364.52x = 4,538,663.91
  5. Step 5: Solve for x
    x = 4,538,663.91/3,364.52
  6. Step 6: Final answer
    x = 1,348.98

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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.