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Finding the Fourth Proportional to 481,878.80, 723,509.40 and 364,374.80

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Solution

The fourth proportional to 481,878.80, 723,509.40 and 364,374.80 is: 547,084.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,878.80 : 723,509.40 = 364,374.80 : x
  2. Step 2: Convert to fraction form
    481,878.80/723,509.40 = 364,374.80/x
  3. Step 3: Cross multiply
    481,878.80x = 723,509.40 × 364,374.80
  4. Step 4: Simplify right side
    481,878.80x = 263,628,592,923.12
  5. Step 5: Solve for x
    x = 263,628,592,923.12/481,878.80
  6. Step 6: Final answer
    x = 547,084.85

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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.