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Finding the Fourth Proportional to 1,622,899.73, 2,239,406.43 and 934,795.42

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Solution

The fourth proportional to 1,622,899.73, 2,239,406.43 and 934,795.42 is: 1,289,905.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,622,899.73 : 2,239,406.43 = 934,795.42 : x
  2. Step 2: Convert to fraction form
    1,622,899.73/2,239,406.43 = 934,795.42/x
  3. Step 3: Cross multiply
    1,622,899.73x = 2,239,406.43 × 934,795.42
  4. Step 4: Simplify right side
    1,622,899.73x = 2,093,386,865,178.55
  5. Step 5: Solve for x
    x = 2,093,386,865,178.55/1,622,899.73
  6. Step 6: Final answer
    x = 1,289,905.24

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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.