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Finding the Fourth Proportional to 3,821,010.86, 5,731,574.61 and 981,060.14

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Solution

The fourth proportional to 3,821,010.86, 5,731,574.61 and 981,060.14 is: 1,471,605.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821,010.86 : 5,731,574.61 = 981,060.14 : x
  2. Step 2: Convert to fraction form
    3,821,010.86/5,731,574.61 = 981,060.14/x
  3. Step 3: Cross multiply
    3,821,010.86x = 5,731,574.61 × 981,060.14
  4. Step 4: Simplify right side
    3,821,010.86x = 5,623,019,360,649.17
  5. Step 5: Solve for x
    x = 5,623,019,360,649.17/3,821,010.86
  6. Step 6: Final answer
    x = 1,471,605.18

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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.