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Finding the Fourth Proportional to 493,197.19, 680,612.12 and 266,842.69

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Solution

The fourth proportional to 493,197.19, 680,612.12 and 266,842.69 is: 368,242.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,197.19 : 680,612.12 = 266,842.69 : x
  2. Step 2: Convert to fraction form
    493,197.19/680,612.12 = 266,842.69/x
  3. Step 3: Cross multiply
    493,197.19x = 680,612.12 × 266,842.69
  4. Step 4: Simplify right side
    493,197.19x = 181,616,366,912.32
  5. Step 5: Solve for x
    x = 181,616,366,912.32/493,197.19
  6. Step 6: Final answer
    x = 368,242.91

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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.