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Finding the Fourth Proportional to 1,113.34, 1,668.80 and 592.82

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Solution

The fourth proportional to 1,113.34, 1,668.80 and 592.82 is: 888.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113.34 : 1,668.80 = 592.82 : x
  2. Step 2: Convert to fraction form
    1,113.34/1,668.80 = 592.82/x
  3. Step 3: Cross multiply
    1,113.34x = 1,668.80 × 592.82
  4. Step 4: Simplify right side
    1,113.34x = 989,286.71
  5. Step 5: Solve for x
    x = 989,286.71/1,113.34
  6. Step 6: Final answer
    x = 888.58

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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.