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Finding the Fourth Proportional to 1,789,644.16, 2,469,560.64 and 1,054,483.84

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Solution

The fourth proportional to 1,789,644.16, 2,469,560.64 and 1,054,483.84 is: 1,455,100.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789,644.16 : 2,469,560.64 = 1,054,483.84 : x
  2. Step 2: Convert to fraction form
    1,789,644.16/2,469,560.64 = 1,054,483.84/x
  3. Step 3: Cross multiply
    1,789,644.16x = 2,469,560.64 × 1,054,483.84
  4. Step 4: Simplify right side
    1,789,644.16x = 2,604,111,786,780.06
  5. Step 5: Solve for x
    x = 2,604,111,786,780.06/1,789,644.16
  6. Step 6: Final answer
    x = 1,455,100.32

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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.