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Finding the Fourth Proportional to 472,878.72, 707,653.80 and 295,469.28

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Solution

The fourth proportional to 472,878.72, 707,653.80 and 295,469.28 is: 442,164.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,878.72 : 707,653.80 = 295,469.28 : x
  2. Step 2: Convert to fraction form
    472,878.72/707,653.80 = 295,469.28/x
  3. Step 3: Cross multiply
    472,878.72x = 707,653.80 × 295,469.28
  4. Step 4: Simplify right side
    472,878.72x = 209,089,958,775.26
  5. Step 5: Solve for x
    x = 209,089,958,775.26/472,878.72
  6. Step 6: Final answer
    x = 442,164.03

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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.