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Finding the Fourth Proportional to 953.89, 1,316.22 and 534.13

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Solution

The fourth proportional to 953.89, 1,316.22 and 534.13 is: 737.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.89 : 1,316.22 = 534.13 : x
  2. Step 2: Convert to fraction form
    953.89/1,316.22 = 534.13/x
  3. Step 3: Cross multiply
    953.89x = 1,316.22 × 534.13
  4. Step 4: Simplify right side
    953.89x = 703,032.59
  5. Step 5: Solve for x
    x = 703,032.59/953.89
  6. Step 6: Final answer
    x = 737.02

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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.