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Finding the Fourth Proportional to 554,973.68, 765,676.20 and 361,293.20

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Solution

The fourth proportional to 554,973.68, 765,676.20 and 361,293.20 is: 498,462.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,973.68 : 765,676.20 = 361,293.20 : x
  2. Step 2: Convert to fraction form
    554,973.68/765,676.20 = 361,293.20/x
  3. Step 3: Cross multiply
    554,973.68x = 765,676.20 × 361,293.20
  4. Step 4: Simplify right side
    554,973.68x = 276,633,604,461.84
  5. Step 5: Solve for x
    x = 276,633,604,461.84/554,973.68
  6. Step 6: Final answer
    x = 498,462.57

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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.