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Finding the Fourth Proportional to 1,837,897.80, 2,756,846.70 and 1,755,229.20

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Solution

The fourth proportional to 1,837,897.80, 2,756,846.70 and 1,755,229.20 is: 2,632,843.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,837,897.80 : 2,756,846.70 = 1,755,229.20 : x
  2. Step 2: Convert to fraction form
    1,837,897.80/2,756,846.70 = 1,755,229.20/x
  3. Step 3: Cross multiply
    1,837,897.80x = 2,756,846.70 × 1,755,229.20
  4. Step 4: Simplify right side
    1,837,897.80x = 4,838,897,827,763.64
  5. Step 5: Solve for x
    x = 4,838,897,827,763.64/1,837,897.80
  6. Step 6: Final answer
    x = 2,632,843.80

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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.