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Finding the Fourth Proportional to 1,295,843.06, 1,943,764.80 and 664,354.10

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Solution

The fourth proportional to 1,295,843.06, 1,943,764.80 and 664,354.10 is: 996,531.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,843.06 : 1,943,764.80 = 664,354.10 : x
  2. Step 2: Convert to fraction form
    1,295,843.06/1,943,764.80 = 664,354.10/x
  3. Step 3: Cross multiply
    1,295,843.06x = 1,943,764.80 × 664,354.10
  4. Step 4: Simplify right side
    1,295,843.06x = 1,291,348,114,315.68
  5. Step 5: Solve for x
    x = 1,291,348,114,315.68/1,295,843.06
  6. Step 6: Final answer
    x = 996,531.26

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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.