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Finding the Fourth Proportional to 953.66, 1,430.62 and 295.59

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Solution

The fourth proportional to 953.66, 1,430.62 and 295.59 is: 443.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.66 : 1,430.62 = 295.59 : x
  2. Step 2: Convert to fraction form
    953.66/1,430.62 = 295.59/x
  3. Step 3: Cross multiply
    953.66x = 1,430.62 × 295.59
  4. Step 4: Simplify right side
    953.66x = 422,868.33
  5. Step 5: Solve for x
    x = 422,868.33/953.66
  6. Step 6: Final answer
    x = 443.42

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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.