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Finding the Fourth Proportional to 1,888,995.90, 2,833,936.76 and 751,826.98

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Solution

The fourth proportional to 1,888,995.90, 2,833,936.76 and 751,826.98 is: 1,127,916.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888,995.90 : 2,833,936.76 = 751,826.98 : x
  2. Step 2: Convert to fraction form
    1,888,995.90/2,833,936.76 = 751,826.98/x
  3. Step 3: Cross multiply
    1,888,995.90x = 2,833,936.76 × 751,826.98
  4. Step 4: Simplify right side
    1,888,995.90x = 2,130,630,115,781.78
  5. Step 5: Solve for x
    x = 2,130,630,115,781.78/1,888,995.90
  6. Step 6: Final answer
    x = 1,127,916.75

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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.