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Finding the Fourth Proportional to 551,735.98, 761,371.35 and 322,314.51

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Solution

The fourth proportional to 551,735.98, 761,371.35 and 322,314.51 is: 444,779.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,735.98 : 761,371.35 = 322,314.51 : x
  2. Step 2: Convert to fraction form
    551,735.98/761,371.35 = 322,314.51/x
  3. Step 3: Cross multiply
    551,735.98x = 761,371.35 × 322,314.51
  4. Step 4: Simplify right side
    551,735.98x = 245,401,029,796.43
  5. Step 5: Solve for x
    x = 245,401,029,796.43/551,735.98
  6. Step 6: Final answer
    x = 444,779.82

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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.