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Finding the Fourth Proportional to 1,804,406.77, 2,489,764.86 and 1,029,683.89

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Solution

The fourth proportional to 1,804,406.77, 2,489,764.86 and 1,029,683.89 is: 1,420,783.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,804,406.77 : 2,489,764.86 = 1,029,683.89 : x
  2. Step 2: Convert to fraction form
    1,804,406.77/2,489,764.86 = 1,029,683.89/x
  3. Step 3: Cross multiply
    1,804,406.77x = 2,489,764.86 × 1,029,683.89
  4. Step 4: Simplify right side
    1,804,406.77x = 2,563,670,760,005.69
  5. Step 5: Solve for x
    x = 2,563,670,760,005.69/1,804,406.77
  6. Step 6: Final answer
    x = 1,420,783.17

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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.