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Finding the Fourth Proportional to 526,235.76, 726,194.52 and 287,771.76

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Solution

The fourth proportional to 526,235.76, 726,194.52 and 287,771.76 is: 397,119.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,235.76 : 726,194.52 = 287,771.76 : x
  2. Step 2: Convert to fraction form
    526,235.76/726,194.52 = 287,771.76/x
  3. Step 3: Cross multiply
    526,235.76x = 726,194.52 × 287,771.76
  4. Step 4: Simplify right side
    526,235.76x = 208,978,275,122.76
  5. Step 5: Solve for x
    x = 208,978,275,122.76/526,235.76
  6. Step 6: Final answer
    x = 397,119.11

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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.