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Finding the Fourth Proportional to 953.42, 1,429.16 and 368.26

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Solution

The fourth proportional to 953.42, 1,429.16 and 368.26 is: 552.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.42 : 1,429.16 = 368.26 : x
  2. Step 2: Convert to fraction form
    953.42/1,429.16 = 368.26/x
  3. Step 3: Cross multiply
    953.42x = 1,429.16 × 368.26
  4. Step 4: Simplify right side
    953.42x = 526,293.47
  5. Step 5: Solve for x
    x = 526,293.47/953.42
  6. Step 6: Final answer
    x = 552.01

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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.