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Finding the Fourth Proportional to 1,627,783, 2,246,340.54 and 912,391

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Solution

The fourth proportional to 1,627,783, 2,246,340.54 and 912,391 is: 1,259,099.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,627,783 : 2,246,340.54 = 912,391 : x
  2. Step 2: Convert to fraction form
    1,627,783/2,246,340.54 = 912,391/x
  3. Step 3: Cross multiply
    1,627,783x = 2,246,340.54 × 912,391
  4. Step 4: Simplify right side
    1,627,783x = 2,049,540,891,631.14
  5. Step 5: Solve for x
    x = 2,049,540,891,631.14/1,627,783
  6. Step 6: Final answer
    x = 1,259,099.58

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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.