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Finding the Fourth Proportional to 681,564.01, 940,558.35 and 395,250.07

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Solution

The fourth proportional to 681,564.01, 940,558.35 and 395,250.07 is: 545,445.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,564.01 : 940,558.35 = 395,250.07 : x
  2. Step 2: Convert to fraction form
    681,564.01/940,558.35 = 395,250.07/x
  3. Step 3: Cross multiply
    681,564.01x = 940,558.35 × 395,250.07
  4. Step 4: Simplify right side
    681,564.01x = 371,755,753,676.59
  5. Step 5: Solve for x
    x = 371,755,753,676.59/681,564.01
  6. Step 6: Final answer
    x = 545,445.11

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1.5x scale

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.