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Finding the Fourth Proportional to 1,621,894.66, 2,433,842.54 and 823,749.01

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Solution

The fourth proportional to 1,621,894.66, 2,433,842.54 and 823,749.01 is: 1,236,131.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621,894.66 : 2,433,842.54 = 823,749.01 : x
  2. Step 2: Convert to fraction form
    1,621,894.66/2,433,842.54 = 823,749.01/x
  3. Step 3: Cross multiply
    1,621,894.66x = 2,433,842.54 × 823,749.01
  4. Step 4: Simplify right side
    1,621,894.66x = 2,004,875,375,706.59
  5. Step 5: Solve for x
    x = 2,004,875,375,706.59/1,621,894.66
  6. Step 6: Final answer
    x = 1,236,131.68

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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.