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Finding the Fourth Proportional to 444,435.32, 666,718.63 and 128,851.22

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Solution

The fourth proportional to 444,435.32, 666,718.63 and 128,851.22 is: 193,295.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,435.32 : 666,718.63 = 128,851.22 : x
  2. Step 2: Convert to fraction form
    444,435.32/666,718.63 = 128,851.22/x
  3. Step 3: Cross multiply
    444,435.32x = 666,718.63 × 128,851.22
  4. Step 4: Simplify right side
    444,435.32x = 85,907,510,216.90
  5. Step 5: Solve for x
    x = 85,907,510,216.90/444,435.32
  6. Step 6: Final answer
    x = 193,295.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.