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Finding the Fourth Proportional to 1,914,163.02, 2,871,742.95 and 716,178.96

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Solution

The fourth proportional to 1,914,163.02, 2,871,742.95 and 716,178.96 is: 1,074,454.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,914,163.02 : 2,871,742.95 = 716,178.96 : x
  2. Step 2: Convert to fraction form
    1,914,163.02/2,871,742.95 = 716,178.96/x
  3. Step 3: Cross multiply
    1,914,163.02x = 2,871,742.95 × 716,178.96
  4. Step 4: Simplify right side
    1,914,163.02x = 2,056,681,879,318.33
  5. Step 5: Solve for x
    x = 2,056,681,879,318.33/1,914,163.02
  6. Step 6: Final answer
    x = 1,074,454.92

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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.