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Finding the Fourth Proportional to 1,259,718.84, 1,889,904 and 361,226.34

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Solution

The fourth proportional to 1,259,718.84, 1,889,904 and 361,226.34 is: 541,932.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,718.84 : 1,889,904 = 361,226.34 : x
  2. Step 2: Convert to fraction form
    1,259,718.84/1,889,904 = 361,226.34/x
  3. Step 3: Cross multiply
    1,259,718.84x = 1,889,904 × 361,226.34
  4. Step 4: Simplify right side
    1,259,718.84x = 682,683,104,871.36
  5. Step 5: Solve for x
    x = 682,683,104,871.36/1,259,718.84
  6. Step 6: Final answer
    x = 541,932.92

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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.