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Finding the Fourth Proportional to 681,068.58, 940,193.10 and 394,532.70

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Solution

The fourth proportional to 681,068.58, 940,193.10 and 394,532.70 is: 544,639.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,068.58 : 940,193.10 = 394,532.70 : x
  2. Step 2: Convert to fraction form
    681,068.58/940,193.10 = 394,532.70/x
  3. Step 3: Cross multiply
    681,068.58x = 940,193.10 × 394,532.70
  4. Step 4: Simplify right side
    681,068.58x = 370,936,922,264.37
  5. Step 5: Solve for x
    x = 370,936,922,264.37/681,068.58
  6. Step 6: Final answer
    x = 544,639.60

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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.