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Finding the Fourth Proportional to 1,904.46, 2,628.12 and 1,076.46

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Solution

The fourth proportional to 1,904.46, 2,628.12 and 1,076.46 is: 1,485.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,904.46 : 2,628.12 = 1,076.46 : x
  2. Step 2: Convert to fraction form
    1,904.46/2,628.12 = 1,076.46/x
  3. Step 3: Cross multiply
    1,904.46x = 2,628.12 × 1,076.46
  4. Step 4: Simplify right side
    1,904.46x = 2,829,066.06
  5. Step 5: Solve for x
    x = 2,829,066.06/1,904.46
  6. Step 6: Final answer
    x = 1,485.50

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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.