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Finding the Fourth Proportional to 1,358.76, 2,038.12 and 589.26

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Solution

The fourth proportional to 1,358.76, 2,038.12 and 589.26 is: 883.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358.76 : 2,038.12 = 589.26 : x
  2. Step 2: Convert to fraction form
    1,358.76/2,038.12 = 589.26/x
  3. Step 3: Cross multiply
    1,358.76x = 2,038.12 × 589.26
  4. Step 4: Simplify right side
    1,358.76x = 1,200,982.59
  5. Step 5: Solve for x
    x = 1,200,982.59/1,358.76
  6. Step 6: Final answer
    x = 883.88

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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.