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Finding the Fourth Proportional to 1,182.66, 1,632.08 and 651.53

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Solution

The fourth proportional to 1,182.66, 1,632.08 and 651.53 is: 899.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182.66 : 1,632.08 = 651.53 : x
  2. Step 2: Convert to fraction form
    1,182.66/1,632.08 = 651.53/x
  3. Step 3: Cross multiply
    1,182.66x = 1,632.08 × 651.53
  4. Step 4: Simplify right side
    1,182.66x = 1,063,346.23
  5. Step 5: Solve for x
    x = 1,063,346.23/1,182.66
  6. Step 6: Final answer
    x = 899.11

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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.