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Finding the Fourth Proportional to 978,482.20, 1,467,723.30 and 884,003.80

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Solution

The fourth proportional to 978,482.20, 1,467,723.30 and 884,003.80 is: 1,326,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,482.20 : 1,467,723.30 = 884,003.80 : x
  2. Step 2: Convert to fraction form
    978,482.20/1,467,723.30 = 884,003.80/x
  3. Step 3: Cross multiply
    978,482.20x = 1,467,723.30 × 884,003.80
  4. Step 4: Simplify right side
    978,482.20x = 1,297,472,974,548.54
  5. Step 5: Solve for x
    x = 1,297,472,974,548.54/978,482.20
  6. Step 6: Final answer
    x = 1,326,005.70

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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.