Home / 1,276,177.04-1,912,872.80-628,199.12

Finding the Fourth Proportional to 1,276,177.04, 1,912,872.80 and 628,199.12

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Solution

The fourth proportional to 1,276,177.04, 1,912,872.80 and 628,199.12 is: 941,613.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,177.04 : 1,912,872.80 = 628,199.12 : x
  2. Step 2: Convert to fraction form
    1,276,177.04/1,912,872.80 = 628,199.12/x
  3. Step 3: Cross multiply
    1,276,177.04x = 1,912,872.80 × 628,199.12
  4. Step 4: Simplify right side
    1,276,177.04x = 1,201,665,009,631.94
  5. Step 5: Solve for x
    x = 1,201,665,009,631.94/1,276,177.04
  6. Step 6: Final answer
    x = 941,613.09

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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.