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Finding the Fourth Proportional to 499,154.40, 749,201.40 and 262,666.80

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Solution

The fourth proportional to 499,154.40, 749,201.40 and 262,666.80 is: 394,247.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,154.40 : 749,201.40 = 262,666.80 : x
  2. Step 2: Convert to fraction form
    499,154.40/749,201.40 = 262,666.80/x
  3. Step 3: Cross multiply
    499,154.40x = 749,201.40 × 262,666.80
  4. Step 4: Simplify right side
    499,154.40x = 196,790,334,293.52
  5. Step 5: Solve for x
    x = 196,790,334,293.52/499,154.40
  6. Step 6: Final answer
    x = 394,247.42

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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.