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Finding the Fourth Proportional to 496,243.20, 744,364.80 and 384,268.80

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Solution

The fourth proportional to 496,243.20, 744,364.80 and 384,268.80 is: 576,403.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,243.20 : 744,364.80 = 384,268.80 : x
  2. Step 2: Convert to fraction form
    496,243.20/744,364.80 = 384,268.80/x
  3. Step 3: Cross multiply
    496,243.20x = 744,364.80 × 384,268.80
  4. Step 4: Simplify right side
    496,243.20x = 286,036,168,458.24
  5. Step 5: Solve for x
    x = 286,036,168,458.24/496,243.20
  6. Step 6: Final answer
    x = 576,403.20

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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.