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Finding the Fourth Proportional to 854,539.66, 1,178,796 and 548,274.07

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Solution

The fourth proportional to 854,539.66, 1,178,796 and 548,274.07 is: 756,317.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,539.66 : 1,178,796 = 548,274.07 : x
  2. Step 2: Convert to fraction form
    854,539.66/1,178,796 = 548,274.07/x
  3. Step 3: Cross multiply
    854,539.66x = 1,178,796 × 548,274.07
  4. Step 4: Simplify right side
    854,539.66x = 646,303,280,619.72
  5. Step 5: Solve for x
    x = 646,303,280,619.72/854,539.66
  6. Step 6: Final answer
    x = 756,317.48

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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.