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Finding the Fourth Proportional to 1,372,503.96, 1,894,131 and 760,644

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Solution

The fourth proportional to 1,372,503.96, 1,894,131 and 760,644 is: 1,049,730.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,372,503.96 : 1,894,131 = 760,644 : x
  2. Step 2: Convert to fraction form
    1,372,503.96/1,894,131 = 760,644/x
  3. Step 3: Cross multiply
    1,372,503.96x = 1,894,131 × 760,644
  4. Step 4: Simplify right side
    1,372,503.96x = 1,440,759,380,364
  5. Step 5: Solve for x
    x = 1,440,759,380,364/1,372,503.96
  6. Step 6: Final answer
    x = 1,049,730.58

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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.