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Finding the Fourth Proportional to 1,576.32, 2,363.64 and 1,509

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Solution

The fourth proportional to 1,576.32, 2,363.64 and 1,509 is: 2,262.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.32 : 2,363.64 = 1,509 : x
  2. Step 2: Convert to fraction form
    1,576.32/2,363.64 = 1,509/x
  3. Step 3: Cross multiply
    1,576.32x = 2,363.64 × 1,509
  4. Step 4: Simplify right side
    1,576.32x = 3,566,732.76
  5. Step 5: Solve for x
    x = 3,566,732.76/1,576.32
  6. Step 6: Final answer
    x = 2,262.70

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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.