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Finding the Fourth Proportional to 493,314.26, 680,775.39 and 266,959.70

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Solution

The fourth proportional to 493,314.26, 680,775.39 and 266,959.70 is: 368,405.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,314.26 : 680,775.39 = 266,959.70 : x
  2. Step 2: Convert to fraction form
    493,314.26/680,775.39 = 266,959.70/x
  3. Step 3: Cross multiply
    493,314.26x = 680,775.39 × 266,959.70
  4. Step 4: Simplify right side
    493,314.26x = 181,739,593,881.78
  5. Step 5: Solve for x
    x = 181,739,593,881.78/493,314.26
  6. Step 6: Final answer
    x = 368,405.31

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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.