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Finding the Fourth Proportional to 1,445.99, 2,169.64 and 568.25

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Solution

The fourth proportional to 1,445.99, 2,169.64 and 568.25 is: 852.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.99 : 2,169.64 = 568.25 : x
  2. Step 2: Convert to fraction form
    1,445.99/2,169.64 = 568.25/x
  3. Step 3: Cross multiply
    1,445.99x = 2,169.64 × 568.25
  4. Step 4: Simplify right side
    1,445.99x = 1,232,897.93
  5. Step 5: Solve for x
    x = 1,232,897.93/1,445.99
  6. Step 6: Final answer
    x = 852.63

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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.