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Finding the Fourth Proportional to 350,563.80, 525,845.70 and 256,560.60

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Solution

The fourth proportional to 350,563.80, 525,845.70 and 256,560.60 is: 384,840.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,563.80 : 525,845.70 = 256,560.60 : x
  2. Step 2: Convert to fraction form
    350,563.80/525,845.70 = 256,560.60/x
  3. Step 3: Cross multiply
    350,563.80x = 525,845.70 × 256,560.60
  4. Step 4: Simplify right side
    350,563.80x = 134,911,288,299.42
  5. Step 5: Solve for x
    x = 134,911,288,299.42/350,563.80
  6. Step 6: Final answer
    x = 384,840.90

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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.