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Finding the Fourth Proportional to 1,558.12, 2,336.94 and 532.12

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Solution

The fourth proportional to 1,558.12, 2,336.94 and 532.12 is: 798.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.12 : 2,336.94 = 532.12 : x
  2. Step 2: Convert to fraction form
    1,558.12/2,336.94 = 532.12/x
  3. Step 3: Cross multiply
    1,558.12x = 2,336.94 × 532.12
  4. Step 4: Simplify right side
    1,558.12x = 1,243,532.51
  5. Step 5: Solve for x
    x = 1,243,532.51/1,558.12
  6. Step 6: Final answer
    x = 798.10

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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.