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Finding the Fourth Proportional to 1,204.44, 1,662.03 and 707.10

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Solution

The fourth proportional to 1,204.44, 1,662.03 and 707.10 is: 975.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204.44 : 1,662.03 = 707.10 : x
  2. Step 2: Convert to fraction form
    1,204.44/1,662.03 = 707.10/x
  3. Step 3: Cross multiply
    1,204.44x = 1,662.03 × 707.10
  4. Step 4: Simplify right side
    1,204.44x = 1,175,221.41
  5. Step 5: Solve for x
    x = 1,175,221.41/1,204.44
  6. Step 6: Final answer
    x = 975.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.