Home / 1,274,598.04-1,912,185.09-421,667.68

Finding the Fourth Proportional to 1,274,598.04, 1,912,185.09 and 421,667.68

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Solution

The fourth proportional to 1,274,598.04, 1,912,185.09 and 421,667.68 is: 632,596.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,598.04 : 1,912,185.09 = 421,667.68 : x
  2. Step 2: Convert to fraction form
    1,274,598.04/1,912,185.09 = 421,667.68/x
  3. Step 3: Cross multiply
    1,274,598.04x = 1,912,185.09 × 421,667.68
  4. Step 4: Simplify right side
    1,274,598.04x = 806,306,650,630.89
  5. Step 5: Solve for x
    x = 806,306,650,630.89/1,274,598.04
  6. Step 6: Final answer
    x = 632,596.81

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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.