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Finding the Fourth Proportional to 493,171.74, 680,574.15 and 266,812.38

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Solution

The fourth proportional to 493,171.74, 680,574.15 and 266,812.38 is: 368,199.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,171.74 : 680,574.15 = 266,812.38 : x
  2. Step 2: Convert to fraction form
    493,171.74/680,574.15 = 266,812.38/x
  3. Step 3: Cross multiply
    493,171.74x = 680,574.15 × 266,812.38
  4. Step 4: Simplify right side
    493,171.74x = 181,585,608,727.98
  5. Step 5: Solve for x
    x = 181,585,608,727.98/493,171.74
  6. Step 6: Final answer
    x = 368,199.54

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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.