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Finding the Fourth Proportional to 445,063.68, 663,625.56 and 395,608.32

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Solution

The fourth proportional to 445,063.68, 663,625.56 and 395,608.32 is: 589,883.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,063.68 : 663,625.56 = 395,608.32 : x
  2. Step 2: Convert to fraction form
    445,063.68/663,625.56 = 395,608.32/x
  3. Step 3: Cross multiply
    445,063.68x = 663,625.56 × 395,608.32
  4. Step 4: Simplify right side
    445,063.68x = 262,535,792,900.66
  5. Step 5: Solve for x
    x = 262,535,792,900.66/445,063.68
  6. Step 6: Final answer
    x = 589,883.66

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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.