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Finding the Fourth Proportional to 707.97, 1,060.52 and 476.97

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Solution

The fourth proportional to 707.97, 1,060.52 and 476.97 is: 714.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    707.97 : 1,060.52 = 476.97 : x
  2. Step 2: Convert to fraction form
    707.97/1,060.52 = 476.97/x
  3. Step 3: Cross multiply
    707.97x = 1,060.52 × 476.97
  4. Step 4: Simplify right side
    707.97x = 505,833.84
  5. Step 5: Solve for x
    x = 505,833.84/707.97
  6. Step 6: Final answer
    x = 714.48

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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.