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Finding the Fourth Proportional to 651,229.60, 978,010.80 and 473,936.80

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Solution

The fourth proportional to 651,229.60, 978,010.80 and 473,936.80 is: 711,754.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,229.60 : 978,010.80 = 473,936.80 : x
  2. Step 2: Convert to fraction form
    651,229.60/978,010.80 = 473,936.80/x
  3. Step 3: Cross multiply
    651,229.60x = 978,010.80 × 473,936.80
  4. Step 4: Simplify right side
    651,229.60x = 463,515,308,917.44
  5. Step 5: Solve for x
    x = 463,515,308,917.44/651,229.60
  6. Step 6: Final answer
    x = 711,754.06

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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.