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Finding the Fourth Proportional to 304,072.80, 456,109.20 and 146,608.80

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Solution

The fourth proportional to 304,072.80, 456,109.20 and 146,608.80 is: 219,913.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,072.80 : 456,109.20 = 146,608.80 : x
  2. Step 2: Convert to fraction form
    304,072.80/456,109.20 = 146,608.80/x
  3. Step 3: Cross multiply
    304,072.80x = 456,109.20 × 146,608.80
  4. Step 4: Simplify right side
    304,072.80x = 66,869,622,480.96
  5. Step 5: Solve for x
    x = 66,869,622,480.96/304,072.80
  6. Step 6: Final answer
    x = 219,913.20

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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.