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Finding the Fourth Proportional to 1,014.93, 1,525.87 and 938.84

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Solution

The fourth proportional to 1,014.93, 1,525.87 and 938.84 is: 1,411.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,014.93 : 1,525.87 = 938.84 : x
  2. Step 2: Convert to fraction form
    1,014.93/1,525.87 = 938.84/x
  3. Step 3: Cross multiply
    1,014.93x = 1,525.87 × 938.84
  4. Step 4: Simplify right side
    1,014.93x = 1,432,552.06
  5. Step 5: Solve for x
    x = 1,432,552.06/1,014.93
  6. Step 6: Final answer
    x = 1,411.48

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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.