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Finding the Fourth Proportional to 1,748,843.90, 2,623,265.85 and 683,138.70

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Solution

The fourth proportional to 1,748,843.90, 2,623,265.85 and 683,138.70 is: 1,024,708.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748,843.90 : 2,623,265.85 = 683,138.70 : x
  2. Step 2: Convert to fraction form
    1,748,843.90/2,623,265.85 = 683,138.70/x
  3. Step 3: Cross multiply
    1,748,843.90x = 2,623,265.85 × 683,138.70
  4. Step 4: Simplify right side
    1,748,843.90x = 1,792,054,422,523.40
  5. Step 5: Solve for x
    x = 1,792,054,422,523.40/1,748,843.90
  6. Step 6: Final answer
    x = 1,024,708.05

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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.