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Finding the Fourth Proportional to 1,383,201, 1,908,875.70 and 779,589

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Solution

The fourth proportional to 1,383,201, 1,908,875.70 and 779,589 is: 1,075,865.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,201 : 1,908,875.70 = 779,589 : x
  2. Step 2: Convert to fraction form
    1,383,201/1,908,875.70 = 779,589/x
  3. Step 3: Cross multiply
    1,383,201x = 1,908,875.70 × 779,589
  4. Step 4: Simplify right side
    1,383,201x = 1,488,138,498,087.30
  5. Step 5: Solve for x
    x = 1,488,138,498,087.30/1,383,201
  6. Step 6: Final answer
    x = 1,075,865.69

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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.