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Finding the Fourth Proportional to 941.04, 1,298.40 and 547.92

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Solution

The fourth proportional to 941.04, 1,298.40 and 547.92 is: 755.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    941.04 : 1,298.40 = 547.92 : x
  2. Step 2: Convert to fraction form
    941.04/1,298.40 = 547.92/x
  3. Step 3: Cross multiply
    941.04x = 1,298.40 × 547.92
  4. Step 4: Simplify right side
    941.04x = 711,419.33
  5. Step 5: Solve for x
    x = 711,419.33/941.04
  6. Step 6: Final answer
    x = 755.99

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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.