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Finding the Fourth Proportional to 618,268.05, 852,783.84 and 434,895.57

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Solution

The fourth proportional to 618,268.05, 852,783.84 and 434,895.57 is: 599,856.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,268.05 : 852,783.84 = 434,895.57 : x
  2. Step 2: Convert to fraction form
    618,268.05/852,783.84 = 434,895.57/x
  3. Step 3: Cross multiply
    618,268.05x = 852,783.84 × 434,895.57
  4. Step 4: Simplify right side
    618,268.05x = 370,871,914,183.59
  5. Step 5: Solve for x
    x = 370,871,914,183.59/618,268.05
  6. Step 6: Final answer
    x = 599,856.19

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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.