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Finding the Fourth Proportional to 396,019.97, 546,430.97 and 235,017.89

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Solution

The fourth proportional to 396,019.97, 546,430.97 and 235,017.89 is: 324,279.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,019.97 : 546,430.97 = 235,017.89 : x
  2. Step 2: Convert to fraction form
    396,019.97/546,430.97 = 235,017.89/x
  3. Step 3: Cross multiply
    396,019.97x = 546,430.97 × 235,017.89
  4. Step 4: Simplify right side
    396,019.97x = 128,421,052,424.96
  5. Step 5: Solve for x
    x = 128,421,052,424.96/396,019.97
  6. Step 6: Final answer
    x = 324,279.23

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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.