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Finding the Fourth Proportional to 567,222.39, 850,833.54 and 389,189.64

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Solution

The fourth proportional to 567,222.39, 850,833.54 and 389,189.64 is: 583,784.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,222.39 : 850,833.54 = 389,189.64 : x
  2. Step 2: Convert to fraction form
    567,222.39/850,833.54 = 389,189.64/x
  3. Step 3: Cross multiply
    567,222.39x = 850,833.54 × 389,189.64
  4. Step 4: Simplify right side
    567,222.39x = 331,135,599,132.53
  5. Step 5: Solve for x
    x = 331,135,599,132.53/567,222.39
  6. Step 6: Final answer
    x = 583,784.43

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Double scale
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Similar ratio
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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.