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Finding the Fourth Proportional to 304,089.20, 455,477.70 and 251,601.20

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Solution

The fourth proportional to 304,089.20, 455,477.70 and 251,601.20 is: 376,858.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,089.20 : 455,477.70 = 251,601.20 : x
  2. Step 2: Convert to fraction form
    304,089.20/455,477.70 = 251,601.20/x
  3. Step 3: Cross multiply
    304,089.20x = 455,477.70 × 251,601.20
  4. Step 4: Simplify right side
    304,089.20x = 114,598,735,893.24
  5. Step 5: Solve for x
    x = 114,598,735,893.24/304,089.20
  6. Step 6: Final answer
    x = 376,858.95

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1.5x scale

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.