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Finding the Fourth Proportional to 1,324.88, 1,828.25 and 735.45

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Solution

The fourth proportional to 1,324.88, 1,828.25 and 735.45 is: 1,014.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324.88 : 1,828.25 = 735.45 : x
  2. Step 2: Convert to fraction form
    1,324.88/1,828.25 = 735.45/x
  3. Step 3: Cross multiply
    1,324.88x = 1,828.25 × 735.45
  4. Step 4: Simplify right side
    1,324.88x = 1,344,582.79
  5. Step 5: Solve for x
    x = 1,344,582.79/1,324.88
  6. Step 6: Final answer
    x = 1,014.88

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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.