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Finding the Fourth Proportional to 304,007.99, 419,473.28 and 190,779.71

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Solution

The fourth proportional to 304,007.99, 419,473.28 and 190,779.71 is: 263,239.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,007.99 : 419,473.28 = 190,779.71 : x
  2. Step 2: Convert to fraction form
    304,007.99/419,473.28 = 190,779.71/x
  3. Step 3: Cross multiply
    304,007.99x = 419,473.28 × 190,779.71
  4. Step 4: Simplify right side
    304,007.99x = 80,026,989,090.73
  5. Step 5: Solve for x
    x = 80,026,989,090.73/304,007.99
  6. Step 6: Final answer
    x = 263,239.76

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1.5x scale

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.