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Finding the Fourth Proportional to 484,541.57, 668,660.66 and 269,681.70

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Solution

The fourth proportional to 484,541.57, 668,660.66 and 269,681.70 is: 372,157.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,541.57 : 668,660.66 = 269,681.70 : x
  2. Step 2: Convert to fraction form
    484,541.57/668,660.66 = 269,681.70/x
  3. Step 3: Cross multiply
    484,541.57x = 668,660.66 × 269,681.70
  4. Step 4: Simplify right side
    484,541.57x = 180,325,542,163.51
  5. Step 5: Solve for x
    x = 180,325,542,163.51/484,541.57
  6. Step 6: Final answer
    x = 372,157.01

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Why These Related Problems?

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