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Finding the Fourth Proportional to 613,685.40, 846,825.44 and 341,742.88

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Solution

The fourth proportional to 613,685.40, 846,825.44 and 341,742.88 is: 471,571.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,685.40 : 846,825.44 = 341,742.88 : x
  2. Step 2: Convert to fraction form
    613,685.40/846,825.44 = 341,742.88/x
  3. Step 3: Cross multiply
    613,685.40x = 846,825.44 × 341,742.88
  4. Step 4: Simplify right side
    613,685.40x = 289,396,564,072.69
  5. Step 5: Solve for x
    x = 289,396,564,072.69/613,685.40
  6. Step 6: Final answer
    x = 471,571.53

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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.