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Finding the Fourth Proportional to 493,428.64, 740,170.32 and 156,445.44

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Solution

The fourth proportional to 493,428.64, 740,170.32 and 156,445.44 is: 234,676.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,428.64 : 740,170.32 = 156,445.44 : x
  2. Step 2: Convert to fraction form
    493,428.64/740,170.32 = 156,445.44/x
  3. Step 3: Cross multiply
    493,428.64x = 740,170.32 × 156,445.44
  4. Step 4: Simplify right side
    493,428.64x = 115,796,271,387.34
  5. Step 5: Solve for x
    x = 115,796,271,387.34/493,428.64
  6. Step 6: Final answer
    x = 234,676.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.