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Finding the Fourth Proportional to 640,676.01, 884,094.90 and 354,179.01

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Solution

The fourth proportional to 640,676.01, 884,094.90 and 354,179.01 is: 488,746.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,676.01 : 884,094.90 = 354,179.01 : x
  2. Step 2: Convert to fraction form
    640,676.01/884,094.90 = 354,179.01/x
  3. Step 3: Cross multiply
    640,676.01x = 884,094.90 × 354,179.01
  4. Step 4: Simplify right side
    640,676.01x = 313,127,858,638.29
  5. Step 5: Solve for x
    x = 313,127,858,638.29/640,676.01
  6. Step 6: Final answer
    x = 488,746.03

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