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Finding the Fourth Proportional to 6,245,368.22, 8,620,440.90 and 3,632,486.90

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Solution

The fourth proportional to 6,245,368.22, 8,620,440.90 and 3,632,486.90 is: 5,013,897.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,245,368.22 : 8,620,440.90 = 3,632,486.90 : x
  2. Step 2: Convert to fraction form
    6,245,368.22/8,620,440.90 = 3,632,486.90/x
  3. Step 3: Cross multiply
    6,245,368.22x = 8,620,440.90 × 3,632,486.90
  4. Step 4: Simplify right side
    6,245,368.22x = 31,313,638,584,750.18
  5. Step 5: Solve for x
    x = 31,313,638,584,750.18/6,245,368.22
  6. Step 6: Final answer
    x = 5,013,897.90

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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.