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Finding the Fourth Proportional to 493,316.16, 680,778.42 and 266,961.66

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Solution

The fourth proportional to 493,316.16, 680,778.42 and 266,961.66 is: 368,408.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,316.16 : 680,778.42 = 266,961.66 : x
  2. Step 2: Convert to fraction form
    493,316.16/680,778.42 = 266,961.66/x
  3. Step 3: Cross multiply
    493,316.16x = 680,778.42 × 266,961.66
  4. Step 4: Simplify right side
    493,316.16x = 181,741,737,095.38
  5. Step 5: Solve for x
    x = 181,741,737,095.38/493,316.16
  6. Step 6: Final answer
    x = 368,408.24

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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.