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Finding the Fourth Proportional to 544,564.86, 751,389.21 and 318,166.62

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Solution

The fourth proportional to 544,564.86, 751,389.21 and 318,166.62 is: 439,005.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,564.86 : 751,389.21 = 318,166.62 : x
  2. Step 2: Convert to fraction form
    544,564.86/751,389.21 = 318,166.62/x
  3. Step 3: Cross multiply
    544,564.86x = 751,389.21 × 318,166.62
  4. Step 4: Simplify right side
    544,564.86x = 239,066,965,250.17
  5. Step 5: Solve for x
    x = 239,066,965,250.17/544,564.86
  6. Step 6: Final answer
    x = 439,005.49

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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.