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Finding the Fourth Proportional to 504,014.80, 756,022.20 and 378,043.60

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Solution

The fourth proportional to 504,014.80, 756,022.20 and 378,043.60 is: 567,065.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,014.80 : 756,022.20 = 378,043.60 : x
  2. Step 2: Convert to fraction form
    504,014.80/756,022.20 = 378,043.60/x
  3. Step 3: Cross multiply
    504,014.80x = 756,022.20 × 378,043.60
  4. Step 4: Simplify right side
    504,014.80x = 285,809,354,167.92
  5. Step 5: Solve for x
    x = 285,809,354,167.92/504,014.80
  6. Step 6: Final answer
    x = 567,065.40

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Double scale
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Similar ratio
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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.