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Finding the Fourth Proportional to 705,969.46, 974,245.38 and 383,679.58

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Solution

The fourth proportional to 705,969.46, 974,245.38 and 383,679.58 is: 529,481.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,969.46 : 974,245.38 = 383,679.58 : x
  2. Step 2: Convert to fraction form
    705,969.46/974,245.38 = 383,679.58/x
  3. Step 3: Cross multiply
    705,969.46x = 974,245.38 × 383,679.58
  4. Step 4: Simplify right side
    705,969.46x = 373,798,058,215.34
  5. Step 5: Solve for x
    x = 373,798,058,215.34/705,969.46
  6. Step 6: Final answer
    x = 529,481.91

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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.