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Finding the Fourth Proportional to 1,924.41, 2,884.55 and 999.74

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Solution

The fourth proportional to 1,924.41, 2,884.55 and 999.74 is: 1,498.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,924.41 : 2,884.55 = 999.74 : x
  2. Step 2: Convert to fraction form
    1,924.41/2,884.55 = 999.74/x
  3. Step 3: Cross multiply
    1,924.41x = 2,884.55 × 999.74
  4. Step 4: Simplify right side
    1,924.41x = 2,883,780.60
  5. Step 5: Solve for x
    x = 2,883,780.60/1,924.41
  6. Step 6: Final answer
    x = 1,498.53

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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.