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Finding the Fourth Proportional to 6,507,340.40, 9,751,679.40 and 4,788,066.80

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Solution

The fourth proportional to 6,507,340.40, 9,751,679.40 and 4,788,066.80 is: 7,175,234.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,507,340.40 : 9,751,679.40 = 4,788,066.80 : x
  2. Step 2: Convert to fraction form
    6,507,340.40/9,751,679.40 = 4,788,066.80/x
  3. Step 3: Cross multiply
    6,507,340.40x = 9,751,679.40 × 4,788,066.80
  4. Step 4: Simplify right side
    6,507,340.40x = 46,691,692,379,383.92
  5. Step 5: Solve for x
    x = 46,691,692,379,383.92/6,507,340.40
  6. Step 6: Final answer
    x = 7,175,234.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.