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Finding the Fourth Proportional to 316,664.22, 474,952.41 and 79,992.30

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Solution

The fourth proportional to 316,664.22, 474,952.41 and 79,992.30 is: 119,977.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,664.22 : 474,952.41 = 79,992.30 : x
  2. Step 2: Convert to fraction form
    316,664.22/474,952.41 = 79,992.30/x
  3. Step 3: Cross multiply
    316,664.22x = 474,952.41 × 79,992.30
  4. Step 4: Simplify right side
    316,664.22x = 37,992,535,666.44
  5. Step 5: Solve for x
    x = 37,992,535,666.44/316,664.22
  6. Step 6: Final answer
    x = 119,977.36

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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.