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Finding the Fourth Proportional to 263,232, 394,889.04 and 85,697.10

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Solution

The fourth proportional to 263,232, 394,889.04 and 85,697.10 is: 128,559.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,232 : 394,889.04 = 85,697.10 : x
  2. Step 2: Convert to fraction form
    263,232/394,889.04 = 85,697.10/x
  3. Step 3: Cross multiply
    263,232x = 394,889.04 × 85,697.10
  4. Step 4: Simplify right side
    263,232x = 33,840,845,549.78
  5. Step 5: Solve for x
    x = 33,840,845,549.78/263,232
  6. Step 6: Final answer
    x = 128,559.01

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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.