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Finding the Fourth Proportional to 558,676.26, 770,990.72 and 316,969.02

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Solution

The fourth proportional to 558,676.26, 770,990.72 and 316,969.02 is: 437,427.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,676.26 : 770,990.72 = 316,969.02 : x
  2. Step 2: Convert to fraction form
    558,676.26/770,990.72 = 316,969.02/x
  3. Step 3: Cross multiply
    558,676.26x = 770,990.72 × 316,969.02
  4. Step 4: Simplify right side
    558,676.26x = 244,380,169,884.96
  5. Step 5: Solve for x
    x = 244,380,169,884.96/558,676.26
  6. Step 6: Final answer
    x = 437,427.16

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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.