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Finding the Fourth Proportional to 1,898.67, 2,848.40 and 803.04

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Solution

The fourth proportional to 1,898.67, 2,848.40 and 803.04 is: 1,204.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898.67 : 2,848.40 = 803.04 : x
  2. Step 2: Convert to fraction form
    1,898.67/2,848.40 = 803.04/x
  3. Step 3: Cross multiply
    1,898.67x = 2,848.40 × 803.04
  4. Step 4: Simplify right side
    1,898.67x = 2,287,367.45
  5. Step 5: Solve for x
    x = 2,287,367.45/1,898.67
  6. Step 6: Final answer
    x = 1,204.72

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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.