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Finding the Fourth Proportional to 1,176.71, 1,763.98 and 527.09

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Solution

The fourth proportional to 1,176.71, 1,763.98 and 527.09 is: 790.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.71 : 1,763.98 = 527.09 : x
  2. Step 2: Convert to fraction form
    1,176.71/1,763.98 = 527.09/x
  3. Step 3: Cross multiply
    1,176.71x = 1,763.98 × 527.09
  4. Step 4: Simplify right side
    1,176.71x = 929,766.08
  5. Step 5: Solve for x
    x = 929,766.08/1,176.71
  6. Step 6: Final answer
    x = 790.14

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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.