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Finding the Fourth Proportional to 504,028.80, 756,043.20 and 252,086.40

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Solution

The fourth proportional to 504,028.80, 756,043.20 and 252,086.40 is: 378,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,028.80 : 756,043.20 = 252,086.40 : x
  2. Step 2: Convert to fraction form
    504,028.80/756,043.20 = 252,086.40/x
  3. Step 3: Cross multiply
    504,028.80x = 756,043.20 × 252,086.40
  4. Step 4: Simplify right side
    504,028.80x = 190,588,208,532.48
  5. Step 5: Solve for x
    x = 190,588,208,532.48/504,028.80
  6. Step 6: Final answer
    x = 378,129.60

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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.