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Finding the Fourth Proportional to 469,338.02, 647,685.85 and 254,477.73

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Solution

The fourth proportional to 469,338.02, 647,685.85 and 254,477.73 is: 351,178.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,338.02 : 647,685.85 = 254,477.73 : x
  2. Step 2: Convert to fraction form
    469,338.02/647,685.85 = 254,477.73/x
  3. Step 3: Cross multiply
    469,338.02x = 647,685.85 × 254,477.73
  4. Step 4: Simplify right side
    469,338.02x = 164,821,624,861.12
  5. Step 5: Solve for x
    x = 164,821,624,861.12/469,338.02
  6. Step 6: Final answer
    x = 351,178.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.