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Finding the Fourth Proportional to 1,176.44, 1,623.14 and 734.36

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Solution

The fourth proportional to 1,176.44, 1,623.14 and 734.36 is: 1,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176.44 : 1,623.14 = 734.36 : x
  2. Step 2: Convert to fraction form
    1,176.44/1,623.14 = 734.36/x
  3. Step 3: Cross multiply
    1,176.44x = 1,623.14 × 734.36
  4. Step 4: Simplify right side
    1,176.44x = 1,191,969.09
  5. Step 5: Solve for x
    x = 1,191,969.09/1,176.44
  6. Step 6: Final answer
    x = 1,013.20

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1.5x scale

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.