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Finding the Fourth Proportional to 1,017.24, 1,525.14 and 555.24

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Solution

The fourth proportional to 1,017.24, 1,525.14 and 555.24 is: 832.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,017.24 : 1,525.14 = 555.24 : x
  2. Step 2: Convert to fraction form
    1,017.24/1,525.14 = 555.24/x
  3. Step 3: Cross multiply
    1,017.24x = 1,525.14 × 555.24
  4. Step 4: Simplify right side
    1,017.24x = 846,818.73
  5. Step 5: Solve for x
    x = 846,818.73/1,017.24
  6. Step 6: Final answer
    x = 832.47

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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.