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Finding the Fourth Proportional to 384,216.80, 576,325.20 and 364,533.80

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Solution

The fourth proportional to 384,216.80, 576,325.20 and 364,533.80 is: 546,800.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,216.80 : 576,325.20 = 364,533.80 : x
  2. Step 2: Convert to fraction form
    384,216.80/576,325.20 = 364,533.80/x
  3. Step 3: Cross multiply
    384,216.80x = 576,325.20 × 364,533.80
  4. Step 4: Simplify right side
    384,216.80x = 210,090,015,191.76
  5. Step 5: Solve for x
    x = 210,090,015,191.76/384,216.80
  6. Step 6: Final answer
    x = 546,800.70

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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.