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Finding the Fourth Proportional to 441,994.89, 609,793.02 and 289,120.35

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Solution

The fourth proportional to 441,994.89, 609,793.02 and 289,120.35 is: 398,881.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,994.89 : 609,793.02 = 289,120.35 : x
  2. Step 2: Convert to fraction form
    441,994.89/609,793.02 = 289,120.35/x
  3. Step 3: Cross multiply
    441,994.89x = 609,793.02 × 289,120.35
  4. Step 4: Simplify right side
    441,994.89x = 176,303,571,369.96
  5. Step 5: Solve for x
    x = 176,303,571,369.96/441,994.89
  6. Step 6: Final answer
    x = 398,881.47

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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.