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Finding the Fourth Proportional to 1,259,893.17, 1,738,680.03 and 686,935.62

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Solution

The fourth proportional to 1,259,893.17, 1,738,680.03 and 686,935.62 is: 947,986.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,893.17 : 1,738,680.03 = 686,935.62 : x
  2. Step 2: Convert to fraction form
    1,259,893.17/1,738,680.03 = 686,935.62/x
  3. Step 3: Cross multiply
    1,259,893.17x = 1,738,680.03 × 686,935.62
  4. Step 4: Simplify right side
    1,259,893.17x = 1,194,361,244,389.67
  5. Step 5: Solve for x
    x = 1,194,361,244,389.67/1,259,893.17
  6. Step 6: Final answer
    x = 947,986.13

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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.