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Finding the Fourth Proportional to 1,374.03, 2,059.72 and 448.94

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Solution

The fourth proportional to 1,374.03, 2,059.72 and 448.94 is: 672.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374.03 : 2,059.72 = 448.94 : x
  2. Step 2: Convert to fraction form
    1,374.03/2,059.72 = 448.94/x
  3. Step 3: Cross multiply
    1,374.03x = 2,059.72 × 448.94
  4. Step 4: Simplify right side
    1,374.03x = 924,694.72
  5. Step 5: Solve for x
    x = 924,694.72/1,374.03
  6. Step 6: Final answer
    x = 672.98

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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.