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Finding the Fourth Proportional to 591.04, 816.48 and 554.88

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Solution

The fourth proportional to 591.04, 816.48 and 554.88 is: 766.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.04 : 816.48 = 554.88 : x
  2. Step 2: Convert to fraction form
    591.04/816.48 = 554.88/x
  3. Step 3: Cross multiply
    591.04x = 816.48 × 554.88
  4. Step 4: Simplify right side
    591.04x = 453,048.42
  5. Step 5: Solve for x
    x = 453,048.42/591.04
  6. Step 6: Final answer
    x = 766.53

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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.