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Finding the Fourth Proportional to 5,648,879.40, 8,473,319.10 and 4,940,291.40

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Solution

The fourth proportional to 5,648,879.40, 8,473,319.10 and 4,940,291.40 is: 7,410,437.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,648,879.40 : 8,473,319.10 = 4,940,291.40 : x
  2. Step 2: Convert to fraction form
    5,648,879.40/8,473,319.10 = 4,940,291.40/x
  3. Step 3: Cross multiply
    5,648,879.40x = 8,473,319.10 × 4,940,291.40
  4. Step 4: Simplify right side
    5,648,879.40x = 41,860,665,479,185.74
  5. Step 5: Solve for x
    x = 41,860,665,479,185.74/5,648,879.40
  6. Step 6: Final answer
    x = 7,410,437.10

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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.