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Finding the Fourth Proportional to 1,075.88, 1,614.43 and 528.22

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Solution

The fourth proportional to 1,075.88, 1,614.43 and 528.22 is: 792.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075.88 : 1,614.43 = 528.22 : x
  2. Step 2: Convert to fraction form
    1,075.88/1,614.43 = 528.22/x
  3. Step 3: Cross multiply
    1,075.88x = 1,614.43 × 528.22
  4. Step 4: Simplify right side
    1,075.88x = 852,776.89
  5. Step 5: Solve for x
    x = 852,776.89/1,075.88
  6. Step 6: Final answer
    x = 792.63

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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.