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Finding the Fourth Proportional to 1,176.32, 1,763.22 and 526.16

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Solution

The fourth proportional to 1,176.32, 1,763.22 and 526.16 is: 788.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.32 : 1,763.22 = 526.16 : x
  2. Step 2: Convert to fraction form
    1,176.32/1,763.22 = 526.16/x
  3. Step 3: Cross multiply
    1,176.32x = 1,763.22 × 526.16
  4. Step 4: Simplify right side
    1,176.32x = 927,735.84
  5. Step 5: Solve for x
    x = 927,735.84/1,176.32
  6. Step 6: Final answer
    x = 788.68

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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.