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Finding the Fourth Proportional to 835,468.32, 1,253,406.60 and 266,849.54

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Solution

The fourth proportional to 835,468.32, 1,253,406.60 and 266,849.54 is: 400,339.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,468.32 : 1,253,406.60 = 266,849.54 : x
  2. Step 2: Convert to fraction form
    835,468.32/1,253,406.60 = 266,849.54/x
  3. Step 3: Cross multiply
    835,468.32x = 1,253,406.60 × 266,849.54
  4. Step 4: Simplify right side
    835,468.32x = 334,470,968,375.93
  5. Step 5: Solve for x
    x = 334,470,968,375.93/835,468.32
  6. Step 6: Final answer
    x = 400,339.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.