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Finding the Fourth Proportional to 1,673.99, 2,511.58 and 578.46

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Solution

The fourth proportional to 1,673.99, 2,511.58 and 578.46 is: 867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,673.99 : 2,511.58 = 578.46 : x
  2. Step 2: Convert to fraction form
    1,673.99/2,511.58 = 578.46/x
  3. Step 3: Cross multiply
    1,673.99x = 2,511.58 × 578.46
  4. Step 4: Simplify right side
    1,673.99x = 1,452,848.57
  5. Step 5: Solve for x
    x = 1,452,848.57/1,673.99
  6. Step 6: Final answer
    x = 867.90

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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.