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Finding the Fourth Proportional to 641,567.69, 962,351.55 and 168,253.03

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Solution

The fourth proportional to 641,567.69, 962,351.55 and 168,253.03 is: 252,379.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,567.69 : 962,351.55 = 168,253.03 : x
  2. Step 2: Convert to fraction form
    641,567.69/962,351.55 = 168,253.03/x
  3. Step 3: Cross multiply
    641,567.69x = 962,351.55 × 168,253.03
  4. Step 4: Simplify right side
    641,567.69x = 161,918,565,415.64
  5. Step 5: Solve for x
    x = 161,918,565,415.64/641,567.69
  6. Step 6: Final answer
    x = 252,379.55

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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.