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Finding the Fourth Proportional to 1,225,883.16, 1,691,713.56 and 682,071

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Solution

The fourth proportional to 1,225,883.16, 1,691,713.56 and 682,071 is: 941,255.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,883.16 : 1,691,713.56 = 682,071 : x
  2. Step 2: Convert to fraction form
    1,225,883.16/1,691,713.56 = 682,071/x
  3. Step 3: Cross multiply
    1,225,883.16x = 1,691,713.56 × 682,071
  4. Step 4: Simplify right side
    1,225,883.16x = 1,153,868,759,582.76
  5. Step 5: Solve for x
    x = 1,153,868,759,582.76/1,225,883.16
  6. Step 6: Final answer
    x = 941,255.09

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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.