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Finding the Fourth Proportional to 1,141.12, 1,709.48 and 592.48

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Solution

The fourth proportional to 1,141.12, 1,709.48 and 592.48 is: 887.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,141.12 : 1,709.48 = 592.48 : x
  2. Step 2: Convert to fraction form
    1,141.12/1,709.48 = 592.48/x
  3. Step 3: Cross multiply
    1,141.12x = 1,709.48 × 592.48
  4. Step 4: Simplify right side
    1,141.12x = 1,012,832.71
  5. Step 5: Solve for x
    x = 1,012,832.71/1,141.12
  6. Step 6: Final answer
    x = 887.58

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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.