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Finding the Fourth Proportional to 1,061.04, 1,591.14 and 476.22

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Solution

The fourth proportional to 1,061.04, 1,591.14 and 476.22 is: 714.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,061.04 : 1,591.14 = 476.22 : x
  2. Step 2: Convert to fraction form
    1,061.04/1,591.14 = 476.22/x
  3. Step 3: Cross multiply
    1,061.04x = 1,591.14 × 476.22
  4. Step 4: Simplify right side
    1,061.04x = 757,732.69
  5. Step 5: Solve for x
    x = 757,732.69/1,061.04
  6. Step 6: Final answer
    x = 714.14

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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.