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Finding the Fourth Proportional to 1,556.64, 2,335.67 and 582.82

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Solution

The fourth proportional to 1,556.64, 2,335.67 and 582.82 is: 874.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.64 : 2,335.67 = 582.82 : x
  2. Step 2: Convert to fraction form
    1,556.64/2,335.67 = 582.82/x
  3. Step 3: Cross multiply
    1,556.64x = 2,335.67 × 582.82
  4. Step 4: Simplify right side
    1,556.64x = 1,361,276.65
  5. Step 5: Solve for x
    x = 1,361,276.65/1,556.64
  6. Step 6: Final answer
    x = 874.50

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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.