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Finding the Fourth Proportional to 3,959,115.84, 5,938,776.95 and 1,263,437.42

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Solution

The fourth proportional to 3,959,115.84, 5,938,776.95 and 1,263,437.42 is: 1,895,189.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959,115.84 : 5,938,776.95 = 1,263,437.42 : x
  2. Step 2: Convert to fraction form
    3,959,115.84/5,938,776.95 = 1,263,437.42/x
  3. Step 3: Cross multiply
    3,959,115.84x = 5,938,776.95 × 1,263,437.42
  4. Step 4: Simplify right side
    3,959,115.84x = 7,503,272,991,652.40
  5. Step 5: Solve for x
    x = 7,503,272,991,652.40/3,959,115.84
  6. Step 6: Final answer
    x = 1,895,189.05

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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.