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Finding the Fourth Proportional to 1,164.34, 1,746.25 and 342.67

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Solution

The fourth proportional to 1,164.34, 1,746.25 and 342.67 is: 513.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,164.34 : 1,746.25 = 342.67 : x
  2. Step 2: Convert to fraction form
    1,164.34/1,746.25 = 342.67/x
  3. Step 3: Cross multiply
    1,164.34x = 1,746.25 × 342.67
  4. Step 4: Simplify right side
    1,164.34x = 598,387.49
  5. Step 5: Solve for x
    x = 598,387.49/1,164.34
  6. Step 6: Final answer
    x = 513.93

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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.