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Finding the Fourth Proportional to 1,407,491.07, 1,942,341.83 and 762,913.82

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Solution

The fourth proportional to 1,407,491.07, 1,942,341.83 and 762,913.82 is: 1,052,823.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,491.07 : 1,942,341.83 = 762,913.82 : x
  2. Step 2: Convert to fraction form
    1,407,491.07/1,942,341.83 = 762,913.82/x
  3. Step 3: Cross multiply
    1,407,491.07x = 1,942,341.83 × 762,913.82
  4. Step 4: Simplify right side
    1,407,491.07x = 1,481,839,429,173.30
  5. Step 5: Solve for x
    x = 1,481,839,429,173.30/1,407,491.07
  6. Step 6: Final answer
    x = 1,052,823.33

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.