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Finding the Fourth Proportional to 1,499.34, 2,069.01 and 836.24

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Solution

The fourth proportional to 1,499.34, 2,069.01 and 836.24 is: 1,153.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,499.34 : 2,069.01 = 836.24 : x
  2. Step 2: Convert to fraction form
    1,499.34/2,069.01 = 836.24/x
  3. Step 3: Cross multiply
    1,499.34x = 2,069.01 × 836.24
  4. Step 4: Simplify right side
    1,499.34x = 1,730,178.58
  5. Step 5: Solve for x
    x = 1,730,178.58/1,499.34
  6. Step 6: Final answer
    x = 1,153.96

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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.