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Finding the Fourth Proportional to 1,184.49, 1,634.26 and 705.87

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Solution

The fourth proportional to 1,184.49, 1,634.26 and 705.87 is: 973.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184.49 : 1,634.26 = 705.87 : x
  2. Step 2: Convert to fraction form
    1,184.49/1,634.26 = 705.87/x
  3. Step 3: Cross multiply
    1,184.49x = 1,634.26 × 705.87
  4. Step 4: Simplify right side
    1,184.49x = 1,153,575.11
  5. Step 5: Solve for x
    x = 1,153,575.11/1,184.49
  6. Step 6: Final answer
    x = 973.90

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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.