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Finding the Fourth Proportional to 804,482.90, 1,206,708.82 and 324,698.03

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Solution

The fourth proportional to 804,482.90, 1,206,708.82 and 324,698.03 is: 487,040.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,482.90 : 1,206,708.82 = 324,698.03 : x
  2. Step 2: Convert to fraction form
    804,482.90/1,206,708.82 = 324,698.03/x
  3. Step 3: Cross multiply
    804,482.90x = 1,206,708.82 × 324,698.03
  4. Step 4: Simplify right side
    804,482.90x = 391,815,976,637.63
  5. Step 5: Solve for x
    x = 391,815,976,637.63/804,482.90
  6. Step 6: Final answer
    x = 487,040.78

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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.