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Finding the Fourth Proportional to 339,888.16, 509,832.24 and 161,855.38

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Solution

The fourth proportional to 339,888.16, 509,832.24 and 161,855.38 is: 242,783.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,888.16 : 509,832.24 = 161,855.38 : x
  2. Step 2: Convert to fraction form
    339,888.16/509,832.24 = 161,855.38/x
  3. Step 3: Cross multiply
    339,888.16x = 509,832.24 × 161,855.38
  4. Step 4: Simplify right side
    339,888.16x = 82,519,090,941.45
  5. Step 5: Solve for x
    x = 82,519,090,941.45/339,888.16
  6. Step 6: Final answer
    x = 242,783.07

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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.