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Finding the Fourth Proportional to 452,431.48, 678,640.20 and 110,878.24

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Solution

The fourth proportional to 452,431.48, 678,640.20 and 110,878.24 is: 166,315.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,431.48 : 678,640.20 = 110,878.24 : x
  2. Step 2: Convert to fraction form
    452,431.48/678,640.20 = 110,878.24/x
  3. Step 3: Cross multiply
    452,431.48x = 678,640.20 × 110,878.24
  4. Step 4: Simplify right side
    452,431.48x = 75,246,430,969.25
  5. Step 5: Solve for x
    x = 75,246,430,969.25/452,431.48
  6. Step 6: Final answer
    x = 166,315.64

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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.