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Finding the Fourth Proportional to 1,346.00, 1,857.38 and 756.51

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Solution

The fourth proportional to 1,346.00, 1,857.38 and 756.51 is: 1,043.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346.00 : 1,857.38 = 756.51 : x
  2. Step 2: Convert to fraction form
    1,346.00/1,857.38 = 756.51/x
  3. Step 3: Cross multiply
    1,346.00x = 1,857.38 × 756.51
  4. Step 4: Simplify right side
    1,346.00x = 1,405,122.76
  5. Step 5: Solve for x
    x = 1,405,122.76/1,346.00
  6. Step 6: Final answer
    x = 1,043.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.