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Finding the Fourth Proportional to 955.06, 1,430.87 and 467.03

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Solution

The fourth proportional to 955.06, 1,430.87 and 467.03 is: 699.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    955.06 : 1,430.87 = 467.03 : x
  2. Step 2: Convert to fraction form
    955.06/1,430.87 = 467.03/x
  3. Step 3: Cross multiply
    955.06x = 1,430.87 × 467.03
  4. Step 4: Simplify right side
    955.06x = 668,260.46
  5. Step 5: Solve for x
    x = 668,260.46/955.06
  6. Step 6: Final answer
    x = 699.71

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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.