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Finding the Fourth Proportional to 1,076,796, 1,485,978.48 and 624,349.44

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Solution

The fourth proportional to 1,076,796, 1,485,978.48 and 624,349.44 is: 861,602.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,796 : 1,485,978.48 = 624,349.44 : x
  2. Step 2: Convert to fraction form
    1,076,796/1,485,978.48 = 624,349.44/x
  3. Step 3: Cross multiply
    1,076,796x = 1,485,978.48 × 624,349.44
  4. Step 4: Simplify right side
    1,076,796x = 927,769,831,840.05
  5. Step 5: Solve for x
    x = 927,769,831,840.05/1,076,796
  6. Step 6: Final answer
    x = 861,602.23

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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.