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Finding the Fourth Proportional to 1,197,440.94, 1,795,207.50 and 691,427.46

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Solution

The fourth proportional to 1,197,440.94, 1,795,207.50 and 691,427.46 is: 1,036,590.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197,440.94 : 1,795,207.50 = 691,427.46 : x
  2. Step 2: Convert to fraction form
    1,197,440.94/1,795,207.50 = 691,427.46/x
  3. Step 3: Cross multiply
    1,197,440.94x = 1,795,207.50 × 691,427.46
  4. Step 4: Simplify right side
    1,197,440.94x = 1,241,255,761,897.95
  5. Step 5: Solve for x
    x = 1,241,255,761,897.95/1,197,440.94
  6. Step 6: Final answer
    x = 1,036,590.38

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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.