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Finding the Fourth Proportional to 328,805.68, 453,622.72 and 190,961.14

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Solution

The fourth proportional to 328,805.68, 453,622.72 and 190,961.14 is: 263,451.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,805.68 : 453,622.72 = 190,961.14 : x
  2. Step 2: Convert to fraction form
    328,805.68/453,622.72 = 190,961.14/x
  3. Step 3: Cross multiply
    328,805.68x = 453,622.72 × 190,961.14
  4. Step 4: Simplify right side
    328,805.68x = 86,624,311,741.10
  5. Step 5: Solve for x
    x = 86,624,311,741.10/328,805.68
  6. Step 6: Final answer
    x = 263,451.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.