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Finding the Fourth Proportional to 262,414.90, 393,670.95 and 84,927.70

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Solution

The fourth proportional to 262,414.90, 393,670.95 and 84,927.70 is: 127,407.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,414.90 : 393,670.95 = 84,927.70 : x
  2. Step 2: Convert to fraction form
    262,414.90/393,670.95 = 84,927.70/x
  3. Step 3: Cross multiply
    262,414.90x = 393,670.95 × 84,927.70
  4. Step 4: Simplify right side
    262,414.90x = 33,433,568,340.32
  5. Step 5: Solve for x
    x = 33,433,568,340.32/262,414.90
  6. Step 6: Final answer
    x = 127,407.28

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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.