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Finding the Fourth Proportional to 550,263.05, 770,893.15 and 550,263.05

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Solution

The fourth proportional to 550,263.05, 770,893.15 and 550,263.05 is: 770,893.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,263.05 : 770,893.15 = 550,263.05 : x
  2. Step 2: Convert to fraction form
    550,263.05/770,893.15 = 550,263.05/x
  3. Step 3: Cross multiply
    550,263.05x = 770,893.15 × 550,263.05
  4. Step 4: Simplify right side
    550,263.05x = 424,194,015,943.11
  5. Step 5: Solve for x
    x = 424,194,015,943.11/550,263.05
  6. Step 6: Final answer
    x = 770,893.15

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.