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Finding the Fourth Proportional to 1,184.34, 1,776.50 and 929.46

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Solution

The fourth proportional to 1,184.34, 1,776.50 and 929.46 is: 1,394.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184.34 : 1,776.50 = 929.46 : x
  2. Step 2: Convert to fraction form
    1,184.34/1,776.50 = 929.46/x
  3. Step 3: Cross multiply
    1,184.34x = 1,776.50 × 929.46
  4. Step 4: Simplify right side
    1,184.34x = 1,651,185.69
  5. Step 5: Solve for x
    x = 1,651,185.69/1,184.34
  6. Step 6: Final answer
    x = 1,394.18

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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.