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Finding the Fourth Proportional to 1,000,744.95, 1,379,655.23 and 633,039.15

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Solution

The fourth proportional to 1,000,744.95, 1,379,655.23 and 633,039.15 is: 872,725.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,744.95 : 1,379,655.23 = 633,039.15 : x
  2. Step 2: Convert to fraction form
    1,000,744.95/1,379,655.23 = 633,039.15/x
  3. Step 3: Cross multiply
    1,000,744.95x = 1,379,655.23 × 633,039.15
  4. Step 4: Simplify right side
    1,000,744.95x = 873,375,770,927.06
  5. Step 5: Solve for x
    x = 873,375,770,927.06/1,000,744.95
  6. Step 6: Final answer
    x = 872,725.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.