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Finding the Fourth Proportional to 2,986,708.71, 4,480,054.56 and 742,846.71

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Solution

The fourth proportional to 2,986,708.71, 4,480,054.56 and 742,846.71 is: 1,114,267.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986,708.71 : 4,480,054.56 = 742,846.71 : x
  2. Step 2: Convert to fraction form
    2,986,708.71/4,480,054.56 = 742,846.71/x
  3. Step 3: Cross multiply
    2,986,708.71x = 4,480,054.56 × 742,846.71
  4. Step 4: Simplify right side
    2,986,708.71x = 3,327,993,790,516.50
  5. Step 5: Solve for x
    x = 3,327,993,790,516.50/2,986,708.71
  6. Step 6: Final answer
    x = 1,114,267.95

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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.