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Finding the Fourth Proportional to 468,133.80, 701,216.55 and 389,401.80

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Solution

The fourth proportional to 468,133.80, 701,216.55 and 389,401.80 is: 583,284.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,133.80 : 701,216.55 = 389,401.80 : x
  2. Step 2: Convert to fraction form
    468,133.80/701,216.55 = 389,401.80/x
  3. Step 3: Cross multiply
    468,133.80x = 701,216.55 × 389,401.80
  4. Step 4: Simplify right side
    468,133.80x = 273,054,986,759.79
  5. Step 5: Solve for x
    x = 273,054,986,759.79/468,133.80
  6. Step 6: Final answer
    x = 583,284.07

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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.