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Finding the Fourth Proportional to 441,994.32, 609,792.20 and 289,119.68

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Solution

The fourth proportional to 441,994.32, 609,792.20 and 289,119.68 is: 398,880.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,994.32 : 609,792.20 = 289,119.68 : x
  2. Step 2: Convert to fraction form
    441,994.32/609,792.20 = 289,119.68/x
  3. Step 3: Cross multiply
    441,994.32x = 609,792.20 × 289,119.68
  4. Step 4: Simplify right side
    441,994.32x = 176,302,925,730.50
  5. Step 5: Solve for x
    x = 176,302,925,730.50/441,994.32
  6. Step 6: Final answer
    x = 398,880.52

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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.