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Finding the Fourth Proportional to 550,647.72, 760,160.84 and 369,293.31

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Solution

The fourth proportional to 550,647.72, 760,160.84 and 369,293.31 is: 509,803.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,647.72 : 760,160.84 = 369,293.31 : x
  2. Step 2: Convert to fraction form
    550,647.72/760,160.84 = 369,293.31/x
  3. Step 3: Cross multiply
    550,647.72x = 760,160.84 × 369,293.31
  4. Step 4: Simplify right side
    550,647.72x = 280,722,310,889.51
  5. Step 5: Solve for x
    x = 280,722,310,889.51/550,647.72
  6. Step 6: Final answer
    x = 509,803.82

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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.