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Finding the Fourth Proportional to 493,313.45, 680,772.54 and 266,958.95

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Solution

The fourth proportional to 493,313.45, 680,772.54 and 266,958.95 is: 368,403.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,313.45 : 680,772.54 = 266,958.95 : x
  2. Step 2: Convert to fraction form
    493,313.45/680,772.54 = 266,958.95/x
  3. Step 3: Cross multiply
    493,313.45x = 680,772.54 × 266,958.95
  4. Step 4: Simplify right side
    493,313.45x = 181,738,319,063.37
  5. Step 5: Solve for x
    x = 181,738,319,063.37/493,313.45
  6. Step 6: Final answer
    x = 368,403.34

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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.