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Finding the Fourth Proportional to 4,444,978.91, 6,666,773.38 and 1,411,945.85

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Solution

The fourth proportional to 4,444,978.91, 6,666,773.38 and 1,411,945.85 is: 2,117,698.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,444,978.91 : 6,666,773.38 = 1,411,945.85 : x
  2. Step 2: Convert to fraction form
    4,444,978.91/6,666,773.38 = 1,411,945.85/x
  3. Step 3: Cross multiply
    4,444,978.91x = 6,666,773.38 × 1,411,945.85
  4. Step 4: Simplify right side
    4,444,978.91x = 9,413,123,019,918.54
  5. Step 5: Solve for x
    x = 9,413,123,019,918.54/4,444,978.91
  6. Step 6: Final answer
    x = 2,117,698.02

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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.