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Finding the Fourth Proportional to 1,154,997.80, 1,731,978.30 and 444,789.80

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Solution

The fourth proportional to 1,154,997.80, 1,731,978.30 and 444,789.80 is: 666,985.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154,997.80 : 1,731,978.30 = 444,789.80 : x
  2. Step 2: Convert to fraction form
    1,154,997.80/1,731,978.30 = 444,789.80/x
  3. Step 3: Cross multiply
    1,154,997.80x = 1,731,978.30 × 444,789.80
  4. Step 4: Simplify right side
    1,154,997.80x = 770,366,281,661.34
  5. Step 5: Solve for x
    x = 770,366,281,661.34/1,154,997.80
  6. Step 6: Final answer
    x = 666,985.06

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