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Finding the Fourth Proportional to 1,166.84, 1,750.37 and 386.68

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Solution

The fourth proportional to 1,166.84, 1,750.37 and 386.68 is: 580.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.84 : 1,750.37 = 386.68 : x
  2. Step 2: Convert to fraction form
    1,166.84/1,750.37 = 386.68/x
  3. Step 3: Cross multiply
    1,166.84x = 1,750.37 × 386.68
  4. Step 4: Simplify right side
    1,166.84x = 676,826.76
  5. Step 5: Solve for x
    x = 676,826.76/1,166.84
  6. Step 6: Final answer
    x = 580.05

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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.