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Finding the Fourth Proportional to 443,705.68, 612,439.41 and 262,480.60

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Solution

The fourth proportional to 443,705.68, 612,439.41 and 262,480.60 is: 362,297.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,705.68 : 612,439.41 = 262,480.60 : x
  2. Step 2: Convert to fraction form
    443,705.68/612,439.41 = 262,480.60/x
  3. Step 3: Cross multiply
    443,705.68x = 612,439.41 × 262,480.60
  4. Step 4: Simplify right side
    443,705.68x = 160,753,463,800.45
  5. Step 5: Solve for x
    x = 160,753,463,800.45/443,705.68
  6. Step 6: Final answer
    x = 362,297.51

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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.