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Finding the Fourth Proportional to 1,175.22, 1,762.47 and 525.60

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Solution

The fourth proportional to 1,175.22, 1,762.47 and 525.60 is: 788.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175.22 : 1,762.47 = 525.60 : x
  2. Step 2: Convert to fraction form
    1,175.22/1,762.47 = 525.60/x
  3. Step 3: Cross multiply
    1,175.22x = 1,762.47 × 525.60
  4. Step 4: Simplify right side
    1,175.22x = 926,354.23
  5. Step 5: Solve for x
    x = 926,354.23/1,175.22
  6. Step 6: Final answer
    x = 788.24

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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.