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Finding the Fourth Proportional to 311,598.63, 467,476.62 and 86,958.90

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Solution

The fourth proportional to 311,598.63, 467,476.62 and 86,958.90 is: 130,460.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,598.63 : 467,476.62 = 86,958.90 : x
  2. Step 2: Convert to fraction form
    311,598.63/467,476.62 = 86,958.90/x
  3. Step 3: Cross multiply
    311,598.63x = 467,476.62 × 86,958.90
  4. Step 4: Simplify right side
    311,598.63x = 40,651,252,650.92
  5. Step 5: Solve for x
    x = 40,651,252,650.92/311,598.63
  6. Step 6: Final answer
    x = 130,460.31

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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.