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Finding the Fourth Proportional to 1,053.46, 1,452.02 and 965.22

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Solution

The fourth proportional to 1,053.46, 1,452.02 and 965.22 is: 1,330.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053.46 : 1,452.02 = 965.22 : x
  2. Step 2: Convert to fraction form
    1,053.46/1,452.02 = 965.22/x
  3. Step 3: Cross multiply
    1,053.46x = 1,452.02 × 965.22
  4. Step 4: Simplify right side
    1,053.46x = 1,401,518.74
  5. Step 5: Solve for x
    x = 1,401,518.74/1,053.46
  6. Step 6: Final answer
    x = 1,330.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.