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Finding the Fourth Proportional to 396,204.93, 546,678.72 and 235,112.40

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Solution

The fourth proportional to 396,204.93, 546,678.72 and 235,112.40 is: 324,405.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,204.93 : 546,678.72 = 235,112.40 : x
  2. Step 2: Convert to fraction form
    396,204.93/546,678.72 = 235,112.40/x
  3. Step 3: Cross multiply
    396,204.93x = 546,678.72 × 235,112.40
  4. Step 4: Simplify right side
    396,204.93x = 128,530,945,888.13
  5. Step 5: Solve for x
    x = 128,530,945,888.13/396,204.93
  6. Step 6: Final answer
    x = 324,405.22

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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.