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Finding the Fourth Proportional to 613,679.38, 846,706.44 and 395,795.86

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Solution

The fourth proportional to 613,679.38, 846,706.44 and 395,795.86 is: 546,087.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,679.38 : 846,706.44 = 395,795.86 : x
  2. Step 2: Convert to fraction form
    613,679.38/846,706.44 = 395,795.86/x
  3. Step 3: Cross multiply
    613,679.38x = 846,706.44 × 395,795.86
  4. Step 4: Simplify right side
    613,679.38x = 335,122,903,587.34
  5. Step 5: Solve for x
    x = 335,122,903,587.34/613,679.38
  6. Step 6: Final answer
    x = 546,087.93

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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.