Home / 1,218,765.60-1,827,028.80-419,857.20

Finding the Fourth Proportional to 1,218,765.60, 1,827,028.80 and 419,857.20

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Solution

The fourth proportional to 1,218,765.60, 1,827,028.80 and 419,857.20 is: 629,400.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,765.60 : 1,827,028.80 = 419,857.20 : x
  2. Step 2: Convert to fraction form
    1,218,765.60/1,827,028.80 = 419,857.20/x
  3. Step 3: Cross multiply
    1,218,765.60x = 1,827,028.80 × 419,857.20
  4. Step 4: Simplify right side
    1,218,765.60x = 767,091,196,287.36
  5. Step 5: Solve for x
    x = 767,091,196,287.36/1,218,765.60
  6. Step 6: Final answer
    x = 629,400.10

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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.