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Finding the Fourth Proportional to 664,080.30, 996,250.05 and 285,000.30

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Solution

The fourth proportional to 664,080.30, 996,250.05 and 285,000.30 is: 427,556.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,080.30 : 996,250.05 = 285,000.30 : x
  2. Step 2: Convert to fraction form
    664,080.30/996,250.05 = 285,000.30/x
  3. Step 3: Cross multiply
    664,080.30x = 996,250.05 × 285,000.30
  4. Step 4: Simplify right side
    664,080.30x = 283,931,563,125.02
  5. Step 5: Solve for x
    x = 283,931,563,125.02/664,080.30
  6. Step 6: Final answer
    x = 427,556.07

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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.