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Finding the Fourth Proportional to 492,793.32, 680,055.80 and 266,438.82

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Solution

The fourth proportional to 492,793.32, 680,055.80 and 266,438.82 is: 367,686.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,793.32 : 680,055.80 = 266,438.82 : x
  2. Step 2: Convert to fraction form
    492,793.32/680,055.80 = 266,438.82/x
  3. Step 3: Cross multiply
    492,793.32x = 680,055.80 × 266,438.82
  4. Step 4: Simplify right side
    492,793.32x = 181,193,263,553.96
  5. Step 5: Solve for x
    x = 181,193,263,553.96/492,793.32
  6. Step 6: Final answer
    x = 367,686.12

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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.