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Finding the Fourth Proportional to 2,978,642.46, 4,465,923.95 and 1,516,859.29

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Solution

The fourth proportional to 2,978,642.46, 4,465,923.95 and 1,516,859.29 is: 2,274,250.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,978,642.46 : 4,465,923.95 = 1,516,859.29 : x
  2. Step 2: Convert to fraction form
    2,978,642.46/4,465,923.95 = 1,516,859.29/x
  3. Step 3: Cross multiply
    2,978,642.46x = 4,465,923.95 × 1,516,859.29
  4. Step 4: Simplify right side
    2,978,642.46x = 6,774,178,231,991.00
  5. Step 5: Solve for x
    x = 6,774,178,231,991.00/2,978,642.46
  6. Step 6: Final answer
    x = 2,274,250.21

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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.