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Finding the Fourth Proportional to 485,870.14, 670,499.04 and 271,010.02

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Solution

The fourth proportional to 485,870.14, 670,499.04 and 271,010.02 is: 373,992.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,870.14 : 670,499.04 = 271,010.02 : x
  2. Step 2: Convert to fraction form
    485,870.14/670,499.04 = 271,010.02/x
  3. Step 3: Cross multiply
    485,870.14x = 670,499.04 × 271,010.02
  4. Step 4: Simplify right side
    485,870.14x = 181,711,958,240.38
  5. Step 5: Solve for x
    x = 181,711,958,240.38/485,870.14
  6. Step 6: Final answer
    x = 373,992.85

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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.