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Finding the Fourth Proportional to 1,075.46, 1,613.19 and 587.48

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Solution

The fourth proportional to 1,075.46, 1,613.19 and 587.48 is: 881.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075.46 : 1,613.19 = 587.48 : x
  2. Step 2: Convert to fraction form
    1,075.46/1,613.19 = 587.48/x
  3. Step 3: Cross multiply
    1,075.46x = 1,613.19 × 587.48
  4. Step 4: Simplify right side
    1,075.46x = 947,708.80
  5. Step 5: Solve for x
    x = 947,708.80/1,075.46
  6. Step 6: Final answer
    x = 881.22

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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.