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Finding the Fourth Proportional to 441,362.05, 609,141.67 and 257,660.87

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Solution

The fourth proportional to 441,362.05, 609,141.67 and 257,660.87 is: 355,608.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,362.05 : 609,141.67 = 257,660.87 : x
  2. Step 2: Convert to fraction form
    441,362.05/609,141.67 = 257,660.87/x
  3. Step 3: Cross multiply
    441,362.05x = 609,141.67 × 257,660.87
  4. Step 4: Simplify right side
    441,362.05x = 156,951,968,955.59
  5. Step 5: Solve for x
    x = 156,951,968,955.59/441,362.05
  6. Step 6: Final answer
    x = 355,608.21

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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.