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Finding the Fourth Proportional to 941,793.53, 1,299,639.23 and 512,074.01

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Solution

The fourth proportional to 941,793.53, 1,299,639.23 and 512,074.01 is: 706,642.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    941,793.53 : 1,299,639.23 = 512,074.01 : x
  2. Step 2: Convert to fraction form
    941,793.53/1,299,639.23 = 512,074.01/x
  3. Step 3: Cross multiply
    941,793.53x = 1,299,639.23 × 512,074.01
  4. Step 4: Simplify right side
    941,793.53x = 665,511,469,499.04
  5. Step 5: Solve for x
    x = 665,511,469,499.04/941,793.53
  6. Step 6: Final answer
    x = 706,642.65

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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.