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Finding the Fourth Proportional to 1,111.43, 1,667.48 and 592.02

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Solution

The fourth proportional to 1,111.43, 1,667.48 and 592.02 is: 888.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111.43 : 1,667.48 = 592.02 : x
  2. Step 2: Convert to fraction form
    1,111.43/1,667.48 = 592.02/x
  3. Step 3: Cross multiply
    1,111.43x = 1,667.48 × 592.02
  4. Step 4: Simplify right side
    1,111.43x = 987,181.51
  5. Step 5: Solve for x
    x = 987,181.51/1,111.43
  6. Step 6: Final answer
    x = 888.21

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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.