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Finding the Fourth Proportional to 304,450.60, 455,801.10 and 272,957.80

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Solution

The fourth proportional to 304,450.60, 455,801.10 and 272,957.80 is: 408,652.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,450.60 : 455,801.10 = 272,957.80 : x
  2. Step 2: Convert to fraction form
    304,450.60/455,801.10 = 272,957.80/x
  3. Step 3: Cross multiply
    304,450.60x = 455,801.10 × 272,957.80
  4. Step 4: Simplify right side
    304,450.60x = 124,414,465,493.58
  5. Step 5: Solve for x
    x = 124,414,465,493.58/304,450.60
  6. Step 6: Final answer
    x = 408,652.39

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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.