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Finding the Fourth Proportional to 1,075.67, 1,614.21 and 589.06

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Solution

The fourth proportional to 1,075.67, 1,614.21 and 589.06 is: 883.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075.67 : 1,614.21 = 589.06 : x
  2. Step 2: Convert to fraction form
    1,075.67/1,614.21 = 589.06/x
  3. Step 3: Cross multiply
    1,075.67x = 1,614.21 × 589.06
  4. Step 4: Simplify right side
    1,075.67x = 950,866.54
  5. Step 5: Solve for x
    x = 950,866.54/1,075.67
  6. Step 6: Final answer
    x = 883.98

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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.