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Finding the Fourth Proportional to 619.00, 927.47 and 436.01

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Solution

The fourth proportional to 619.00, 927.47 and 436.01 is: 653.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.00 : 927.47 = 436.01 : x
  2. Step 2: Convert to fraction form
    619.00/927.47 = 436.01/x
  3. Step 3: Cross multiply
    619.00x = 927.47 × 436.01
  4. Step 4: Simplify right side
    619.00x = 404,379.38
  5. Step 5: Solve for x
    x = 404,379.38/619.00
  6. Step 6: Final answer
    x = 653.28

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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.