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Finding the Fourth Proportional to 1,786,009.20, 2,674,348.20 and 1,702,028.40

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Solution

The fourth proportional to 1,786,009.20, 2,674,348.20 and 1,702,028.40 is: 2,548,596.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786,009.20 : 2,674,348.20 = 1,702,028.40 : x
  2. Step 2: Convert to fraction form
    1,786,009.20/2,674,348.20 = 1,702,028.40/x
  3. Step 3: Cross multiply
    1,786,009.20x = 2,674,348.20 × 1,702,028.40
  4. Step 4: Simplify right side
    1,786,009.20x = 4,551,816,587,888.88
  5. Step 5: Solve for x
    x = 4,551,816,587,888.88/1,786,009.20
  6. Step 6: Final answer
    x = 2,548,596.38

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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.