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Finding the Fourth Proportional to 304,074.40, 455,593.20 and 251,197.60

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Solution

The fourth proportional to 304,074.40, 455,593.20 and 251,197.60 is: 376,368.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,074.40 : 455,593.20 = 251,197.60 : x
  2. Step 2: Convert to fraction form
    304,074.40/455,593.20 = 251,197.60/x
  3. Step 3: Cross multiply
    304,074.40x = 455,593.20 × 251,197.60
  4. Step 4: Simplify right side
    304,074.40x = 114,443,918,416.32
  5. Step 5: Solve for x
    x = 114,443,918,416.32/304,074.40
  6. Step 6: Final answer
    x = 376,368.15

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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.