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Finding the Fourth Proportional to 1,264.86, 1,896.46 and 534.24

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Solution

The fourth proportional to 1,264.86, 1,896.46 and 534.24 is: 801.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264.86 : 1,896.46 = 534.24 : x
  2. Step 2: Convert to fraction form
    1,264.86/1,896.46 = 534.24/x
  3. Step 3: Cross multiply
    1,264.86x = 1,896.46 × 534.24
  4. Step 4: Simplify right side
    1,264.86x = 1,013,164.79
  5. Step 5: Solve for x
    x = 1,013,164.79/1,264.86
  6. Step 6: Final answer
    x = 801.01

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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.