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Finding the Fourth Proportional to 468,287.67, 645,798.33 and 310,845.08

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Solution

The fourth proportional to 468,287.67, 645,798.33 and 310,845.08 is: 428,675.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,287.67 : 645,798.33 = 310,845.08 : x
  2. Step 2: Convert to fraction form
    468,287.67/645,798.33 = 310,845.08/x
  3. Step 3: Cross multiply
    468,287.67x = 645,798.33 × 310,845.08
  4. Step 4: Simplify right side
    468,287.67x = 200,743,233,552.72
  5. Step 5: Solve for x
    x = 200,743,233,552.72/468,287.67
  6. Step 6: Final answer
    x = 428,675.04

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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.