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Finding the Fourth Proportional to 383,251.45, 529,106.23 and 254,364.71

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Solution

The fourth proportional to 383,251.45, 529,106.23 and 254,364.71 is: 351,168.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,251.45 : 529,106.23 = 254,364.71 : x
  2. Step 2: Convert to fraction form
    383,251.45/529,106.23 = 254,364.71/x
  3. Step 3: Cross multiply
    383,251.45x = 529,106.23 × 254,364.71
  4. Step 4: Simplify right side
    383,251.45x = 134,585,948,994.77
  5. Step 5: Solve for x
    x = 134,585,948,994.77/383,251.45
  6. Step 6: Final answer
    x = 351,168.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.