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Finding the Fourth Proportional to 1,153.84, 1,592.22 and 656.56

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Solution

The fourth proportional to 1,153.84, 1,592.22 and 656.56 is: 906.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,153.84 : 1,592.22 = 656.56 : x
  2. Step 2: Convert to fraction form
    1,153.84/1,592.22 = 656.56/x
  3. Step 3: Cross multiply
    1,153.84x = 1,592.22 × 656.56
  4. Step 4: Simplify right side
    1,153.84x = 1,045,387.96
  5. Step 5: Solve for x
    x = 1,045,387.96/1,153.84
  6. Step 6: Final answer
    x = 906.01

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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.