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Finding the Fourth Proportional to 1,175.52, 1,763.76 and 526.80

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Solution

The fourth proportional to 1,175.52, 1,763.76 and 526.80 is: 790.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175.52 : 1,763.76 = 526.80 : x
  2. Step 2: Convert to fraction form
    1,175.52/1,763.76 = 526.80/x
  3. Step 3: Cross multiply
    1,175.52x = 1,763.76 × 526.80
  4. Step 4: Simplify right side
    1,175.52x = 929,148.77
  5. Step 5: Solve for x
    x = 929,148.77/1,175.52
  6. Step 6: Final answer
    x = 790.42

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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.