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Finding the Fourth Proportional to 1,447,766.63, 1,998,095.13 and 835,918.37

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Solution

The fourth proportional to 1,447,766.63, 1,998,095.13 and 835,918.37 is: 1,153,669.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447,766.63 : 1,998,095.13 = 835,918.37 : x
  2. Step 2: Convert to fraction form
    1,447,766.63/1,998,095.13 = 835,918.37/x
  3. Step 3: Cross multiply
    1,447,766.63x = 1,998,095.13 × 835,918.37
  4. Step 4: Simplify right side
    1,447,766.63x = 1,670,244,424,174.54
  5. Step 5: Solve for x
    x = 1,670,244,424,174.54/1,447,766.63
  6. Step 6: Final answer
    x = 1,153,669.65

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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.