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Finding the Fourth Proportional to 841.93, 1,160.26 and 708.96

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Solution

The fourth proportional to 841.93, 1,160.26 and 708.96 is: 977.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    841.93 : 1,160.26 = 708.96 : x
  2. Step 2: Convert to fraction form
    841.93/1,160.26 = 708.96/x
  3. Step 3: Cross multiply
    841.93x = 1,160.26 × 708.96
  4. Step 4: Simplify right side
    841.93x = 822,577.93
  5. Step 5: Solve for x
    x = 822,577.93/841.93
  6. Step 6: Final answer
    x = 977.01

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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.