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Finding the Fourth Proportional to 1,106,856, 1,527,800 and 648,078.12

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Solution

The fourth proportional to 1,106,856, 1,527,800 and 648,078.12 is: 894,546.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,106,856 : 1,527,800 = 648,078.12 : x
  2. Step 2: Convert to fraction form
    1,106,856/1,527,800 = 648,078.12/x
  3. Step 3: Cross multiply
    1,106,856x = 1,527,800 × 648,078.12
  4. Step 4: Simplify right side
    1,106,856x = 990,133,751,736
  5. Step 5: Solve for x
    x = 990,133,751,736/1,106,856
  6. Step 6: Final answer
    x = 894,546.13

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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.