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Finding the Fourth Proportional to 707.27, 1,060.74 and 245.00

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Solution

The fourth proportional to 707.27, 1,060.74 and 245.00 is: 367.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    707.27 : 1,060.74 = 245.00 : x
  2. Step 2: Convert to fraction form
    707.27/1,060.74 = 245.00/x
  3. Step 3: Cross multiply
    707.27x = 1,060.74 × 245.00
  4. Step 4: Simplify right side
    707.27x = 259,883.95
  5. Step 5: Solve for x
    x = 259,883.95/707.27
  6. Step 6: Final answer
    x = 367.45

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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.