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Finding the Fourth Proportional to 1,061.93, 1,592.80 and 445.52

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Solution

The fourth proportional to 1,061.93, 1,592.80 and 445.52 is: 668.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,061.93 : 1,592.80 = 445.52 : x
  2. Step 2: Convert to fraction form
    1,061.93/1,592.80 = 445.52/x
  3. Step 3: Cross multiply
    1,061.93x = 1,592.80 × 445.52
  4. Step 4: Simplify right side
    1,061.93x = 709,627.12
  5. Step 5: Solve for x
    x = 709,627.12/1,061.93
  6. Step 6: Final answer
    x = 668.24

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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.