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Finding the Fourth Proportional to 618,804.77, 928,471.82 and 259,059.67

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Solution

The fourth proportional to 618,804.77, 928,471.82 and 259,059.67 is: 388,700.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,804.77 : 928,471.82 = 259,059.67 : x
  2. Step 2: Convert to fraction form
    618,804.77/928,471.82 = 259,059.67/x
  3. Step 3: Cross multiply
    618,804.77x = 928,471.82 × 259,059.67
  4. Step 4: Simplify right side
    618,804.77x = 240,529,599,677.02
  5. Step 5: Solve for x
    x = 240,529,599,677.02/618,804.77
  6. Step 6: Final answer
    x = 388,700.30

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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.