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Finding the Fourth Proportional to 477,906.10, 659,505.20 and 263,041.54

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Solution

The fourth proportional to 477,906.10, 659,505.20 and 263,041.54 is: 362,994.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,906.10 : 659,505.20 = 263,041.54 : x
  2. Step 2: Convert to fraction form
    477,906.10/659,505.20 = 263,041.54/x
  3. Step 3: Cross multiply
    477,906.10x = 659,505.20 × 263,041.54
  4. Step 4: Simplify right side
    477,906.10x = 173,477,263,446.01
  5. Step 5: Solve for x
    x = 173,477,263,446.01/477,906.10
  6. Step 6: Final answer
    x = 362,994.45

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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.