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Finding the Fourth Proportional to 493,304.39, 680,760.66 and 266,949.89

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Solution

The fourth proportional to 493,304.39, 680,760.66 and 266,949.89 is: 368,391.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,304.39 : 680,760.66 = 266,949.89 : x
  2. Step 2: Convert to fraction form
    493,304.39/680,760.66 = 266,949.89/x
  3. Step 3: Cross multiply
    493,304.39x = 680,760.66 × 266,949.89
  4. Step 4: Simplify right side
    493,304.39x = 181,728,983,303.33
  5. Step 5: Solve for x
    x = 181,728,983,303.33/493,304.39
  6. Step 6: Final answer
    x = 368,391.17

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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.