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Finding the Fourth Proportional to 828,108.76, 1,242,425.58 and 295,618

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Solution

The fourth proportional to 828,108.76, 1,242,425.58 and 295,618 is: 443,520.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,108.76 : 1,242,425.58 = 295,618 : x
  2. Step 2: Convert to fraction form
    828,108.76/1,242,425.58 = 295,618/x
  3. Step 3: Cross multiply
    828,108.76x = 1,242,425.58 × 295,618
  4. Step 4: Simplify right side
    828,108.76x = 367,283,365,108.44
  5. Step 5: Solve for x
    x = 367,283,365,108.44/828,108.76
  6. Step 6: Final answer
    x = 443,520.69

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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.