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Finding the Fourth Proportional to 286,772.16, 395,737.44 and 159,445.44

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Solution

The fourth proportional to 286,772.16, 395,737.44 and 159,445.44 is: 220,030.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,772.16 : 395,737.44 = 159,445.44 : x
  2. Step 2: Convert to fraction form
    286,772.16/395,737.44 = 159,445.44/x
  3. Step 3: Cross multiply
    286,772.16x = 395,737.44 × 159,445.44
  4. Step 4: Simplify right side
    286,772.16x = 63,098,530,245.27
  5. Step 5: Solve for x
    x = 63,098,530,245.27/286,772.16
  6. Step 6: Final answer
    x = 220,030.18

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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.