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Finding the Fourth Proportional to 681,184.64, 940,029.60 and 394,698.56

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Solution

The fourth proportional to 681,184.64, 940,029.60 and 394,698.56 is: 544,681.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,184.64 : 940,029.60 = 394,698.56 : x
  2. Step 2: Convert to fraction form
    681,184.64/940,029.60 = 394,698.56/x
  3. Step 3: Cross multiply
    681,184.64x = 940,029.60 × 394,698.56
  4. Step 4: Simplify right side
    681,184.64x = 371,028,329,477.38
  5. Step 5: Solve for x
    x = 371,028,329,477.38/681,184.64
  6. Step 6: Final answer
    x = 544,681.00

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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.