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Finding the Fourth Proportional to 1,447,795.81, 1,998,052.68 and 835,974.33

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Solution

The fourth proportional to 1,447,795.81, 1,998,052.68 and 835,974.33 is: 1,153,699.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,447,795.81 : 1,998,052.68 = 835,974.33 : x
  2. Step 2: Convert to fraction form
    1,447,795.81/1,998,052.68 = 835,974.33/x
  3. Step 3: Cross multiply
    1,447,795.81x = 1,998,052.68 × 835,974.33
  4. Step 4: Simplify right side
    1,447,795.81x = 1,670,320,750,467.70
  5. Step 5: Solve for x
    x = 1,670,320,750,467.70/1,447,795.81
  6. Step 6: Final answer
    x = 1,153,699.12

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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.