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Finding the Fourth Proportional to 1,104, 1,655.04 and 555.84

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Solution

The fourth proportional to 1,104, 1,655.04 and 555.84 is: 833.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,104 : 1,655.04 = 555.84 : x
  2. Step 2: Convert to fraction form
    1,104/1,655.04 = 555.84/x
  3. Step 3: Cross multiply
    1,104x = 1,655.04 × 555.84
  4. Step 4: Simplify right side
    1,104x = 919,937.43
  5. Step 5: Solve for x
    x = 919,937.43/1,104
  6. Step 6: Final answer
    x = 833.28

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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.