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Finding the Fourth Proportional to 512,666.10, 768,999.15 and 246,945.60

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Solution

The fourth proportional to 512,666.10, 768,999.15 and 246,945.60 is: 370,418.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,666.10 : 768,999.15 = 246,945.60 : x
  2. Step 2: Convert to fraction form
    512,666.10/768,999.15 = 246,945.60/x
  3. Step 3: Cross multiply
    512,666.10x = 768,999.15 × 246,945.60
  4. Step 4: Simplify right side
    512,666.10x = 189,900,956,496.24
  5. Step 5: Solve for x
    x = 189,900,956,496.24/512,666.10
  6. Step 6: Final answer
    x = 370,418.40

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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.