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Finding the Fourth Proportional to 572,770.20, 858,896.10 and 257,064.60

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Solution

The fourth proportional to 572,770.20, 858,896.10 and 257,064.60 is: 385,480.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,770.20 : 858,896.10 = 257,064.60 : x
  2. Step 2: Convert to fraction form
    572,770.20/858,896.10 = 257,064.60/x
  3. Step 3: Cross multiply
    572,770.20x = 858,896.10 × 257,064.60
  4. Step 4: Simplify right side
    572,770.20x = 220,791,782,388.06
  5. Step 5: Solve for x
    x = 220,791,782,388.06/572,770.20
  6. Step 6: Final answer
    x = 385,480.57

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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.