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Finding the Fourth Proportional to 550,649.22, 760,162.91 and 369,294.81

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Solution

The fourth proportional to 550,649.22, 760,162.91 and 369,294.81 is: 509,805.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,649.22 : 760,162.91 = 369,294.81 : x
  2. Step 2: Convert to fraction form
    550,649.22/760,162.91 = 369,294.81/x
  3. Step 3: Cross multiply
    550,649.22x = 760,162.91 × 369,294.81
  4. Step 4: Simplify right side
    550,649.22x = 280,724,215,571.02
  5. Step 5: Solve for x
    x = 280,724,215,571.02/550,649.22
  6. Step 6: Final answer
    x = 509,805.89

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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.