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Finding the Fourth Proportional to 1,165.67, 1,748.54 and 472.67

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Solution

The fourth proportional to 1,165.67, 1,748.54 and 472.67 is: 709.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,165.67 : 1,748.54 = 472.67 : x
  2. Step 2: Convert to fraction form
    1,165.67/1,748.54 = 472.67/x
  3. Step 3: Cross multiply
    1,165.67x = 1,748.54 × 472.67
  4. Step 4: Simplify right side
    1,165.67x = 826,482.40
  5. Step 5: Solve for x
    x = 826,482.40/1,165.67
  6. Step 6: Final answer
    x = 709.02

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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.