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Finding the Fourth Proportional to 606,608.40, 909,912.60 and 382,222.20

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Solution

The fourth proportional to 606,608.40, 909,912.60 and 382,222.20 is: 573,333.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,608.40 : 909,912.60 = 382,222.20 : x
  2. Step 2: Convert to fraction form
    606,608.40/909,912.60 = 382,222.20/x
  3. Step 3: Cross multiply
    606,608.40x = 909,912.60 × 382,222.20
  4. Step 4: Simplify right side
    606,608.40x = 347,788,795,779.72
  5. Step 5: Solve for x
    x = 347,788,795,779.72/606,608.40
  6. Step 6: Final answer
    x = 573,333.30

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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.