Home / 919,835.04-1,269,369.36-511,934.88

Finding the Fourth Proportional to 919,835.04, 1,269,369.36 and 511,934.88

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Solution

The fourth proportional to 919,835.04, 1,269,369.36 and 511,934.88 is: 706,468.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,835.04 : 1,269,369.36 = 511,934.88 : x
  2. Step 2: Convert to fraction form
    919,835.04/1,269,369.36 = 511,934.88/x
  3. Step 3: Cross multiply
    919,835.04x = 1,269,369.36 × 511,934.88
  4. Step 4: Simplify right side
    919,835.04x = 649,834,450,987.28
  5. Step 5: Solve for x
    x = 649,834,450,987.28/919,835.04
  6. Step 6: Final answer
    x = 706,468.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.