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Finding the Fourth Proportional to 1,341.99, 2,012.79 and 368.17

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Solution

The fourth proportional to 1,341.99, 2,012.79 and 368.17 is: 552.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.99 : 2,012.79 = 368.17 : x
  2. Step 2: Convert to fraction form
    1,341.99/2,012.79 = 368.17/x
  3. Step 3: Cross multiply
    1,341.99x = 2,012.79 × 368.17
  4. Step 4: Simplify right side
    1,341.99x = 741,048.89
  5. Step 5: Solve for x
    x = 741,048.89/1,341.99
  6. Step 6: Final answer
    x = 552.20

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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.