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Finding the Fourth Proportional to 754.16, 1,041.11 and 474.53

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Solution

The fourth proportional to 754.16, 1,041.11 and 474.53 is: 655.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    754.16 : 1,041.11 = 474.53 : x
  2. Step 2: Convert to fraction form
    754.16/1,041.11 = 474.53/x
  3. Step 3: Cross multiply
    754.16x = 1,041.11 × 474.53
  4. Step 4: Simplify right side
    754.16x = 494,030.35
  5. Step 5: Solve for x
    x = 494,030.35/754.16
  6. Step 6: Final answer
    x = 655.08

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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.