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Finding the Fourth Proportional to 1,377,828, 1,901,580.84 and 774,216

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Solution

The fourth proportional to 1,377,828, 1,901,580.84 and 774,216 is: 1,068,518.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,828 : 1,901,580.84 = 774,216 : x
  2. Step 2: Convert to fraction form
    1,377,828/1,901,580.84 = 774,216/x
  3. Step 3: Cross multiply
    1,377,828x = 1,901,580.84 × 774,216
  4. Step 4: Simplify right side
    1,377,828x = 1,472,234,311,621.44
  5. Step 5: Solve for x
    x = 1,472,234,311,621.44/1,377,828
  6. Step 6: Final answer
    x = 1,068,518.21

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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.