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Finding the Fourth Proportional to 304,046.40, 455,551.20 and 251,169.60

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Solution

The fourth proportional to 304,046.40, 455,551.20 and 251,169.60 is: 376,326.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,046.40 : 455,551.20 = 251,169.60 : x
  2. Step 2: Convert to fraction form
    304,046.40/455,551.20 = 251,169.60/x
  3. Step 3: Cross multiply
    304,046.40x = 455,551.20 × 251,169.60
  4. Step 4: Simplify right side
    304,046.40x = 114,420,612,683.52
  5. Step 5: Solve for x
    x = 114,420,612,683.52/304,046.40
  6. Step 6: Final answer
    x = 376,326.16

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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.