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Finding the Fourth Proportional to 1,017.16, 1,525.42 and 333

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Solution

The fourth proportional to 1,017.16, 1,525.42 and 333 is: 499.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,017.16 : 1,525.42 = 333 : x
  2. Step 2: Convert to fraction form
    1,017.16/1,525.42 = 333/x
  3. Step 3: Cross multiply
    1,017.16x = 1,525.42 × 333
  4. Step 4: Simplify right side
    1,017.16x = 507,964.86
  5. Step 5: Solve for x
    x = 507,964.86/1,017.16
  6. Step 6: Final answer
    x = 499.40

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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.