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Finding the Fourth Proportional to 445,033.68, 663,580.74 and 395,578.32

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Solution

The fourth proportional to 445,033.68, 663,580.74 and 395,578.32 is: 589,838.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,033.68 : 663,580.74 = 395,578.32 : x
  2. Step 2: Convert to fraction form
    445,033.68/663,580.74 = 395,578.32/x
  3. Step 3: Cross multiply
    445,033.68x = 663,580.74 × 395,578.32
  4. Step 4: Simplify right side
    445,033.68x = 262,498,154,313.56
  5. Step 5: Solve for x
    x = 262,498,154,313.56/445,033.68
  6. Step 6: Final answer
    x = 589,838.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.