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Finding the Fourth Proportional to 5,291,498.80, 7,938,375.72 and 3,018,107.44

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Solution

The fourth proportional to 5,291,498.80, 7,938,375.72 and 3,018,107.44 is: 4,527,804.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,291,498.80 : 7,938,375.72 = 3,018,107.44 : x
  2. Step 2: Convert to fraction form
    5,291,498.80/7,938,375.72 = 3,018,107.44/x
  3. Step 3: Cross multiply
    5,291,498.80x = 7,938,375.72 × 3,018,107.44
  4. Step 4: Simplify right side
    5,291,498.80x = 23,958,870,822,047.36
  5. Step 5: Solve for x
    x = 23,958,870,822,047.36/5,291,498.80
  6. Step 6: Final answer
    x = 4,527,804.26

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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.