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Finding the Fourth Proportional to 265,761.54, 398,360.30 and 130,635.05

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Solution

The fourth proportional to 265,761.54, 398,360.30 and 130,635.05 is: 195,813.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,761.54 : 398,360.30 = 130,635.05 : x
  2. Step 2: Convert to fraction form
    265,761.54/398,360.30 = 130,635.05/x
  3. Step 3: Cross multiply
    265,761.54x = 398,360.30 × 130,635.05
  4. Step 4: Simplify right side
    265,761.54x = 52,039,815,063.54
  5. Step 5: Solve for x
    x = 52,039,815,063.54/265,761.54
  6. Step 6: Final answer
    x = 195,813.94

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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.