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Finding the Fourth Proportional to 558,411.75, 770,615.90 and 303,762.94

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Solution

The fourth proportional to 558,411.75, 770,615.90 and 303,762.94 is: 419,197.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,411.75 : 770,615.90 = 303,762.94 : x
  2. Step 2: Convert to fraction form
    558,411.75/770,615.90 = 303,762.94/x
  3. Step 3: Cross multiply
    558,411.75x = 770,615.90 × 303,762.94
  4. Step 4: Simplify right side
    558,411.75x = 234,084,551,394.75
  5. Step 5: Solve for x
    x = 234,084,551,394.75/558,411.75
  6. Step 6: Final answer
    x = 419,197.04

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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.