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Finding the Fourth Proportional to 336,103.20, 504,154.80 and 285,364.80

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Solution

The fourth proportional to 336,103.20, 504,154.80 and 285,364.80 is: 428,047.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,103.20 : 504,154.80 = 285,364.80 : x
  2. Step 2: Convert to fraction form
    336,103.20/504,154.80 = 285,364.80/x
  3. Step 3: Cross multiply
    336,103.20x = 504,154.80 × 285,364.80
  4. Step 4: Simplify right side
    336,103.20x = 143,868,033,671.04
  5. Step 5: Solve for x
    x = 143,868,033,671.04/336,103.20
  6. Step 6: Final answer
    x = 428,047.20

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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.