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Finding the Fourth Proportional to 1,596.72, 2,394.80 and 556.64

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Solution

The fourth proportional to 1,596.72, 2,394.80 and 556.64 is: 834.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,596.72 : 2,394.80 = 556.64 : x
  2. Step 2: Convert to fraction form
    1,596.72/2,394.80 = 556.64/x
  3. Step 3: Cross multiply
    1,596.72x = 2,394.80 × 556.64
  4. Step 4: Simplify right side
    1,596.72x = 1,333,041.47
  5. Step 5: Solve for x
    x = 1,333,041.47/1,596.72
  6. Step 6: Final answer
    x = 834.86

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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.