Home / 919,851.12-1,269,436.36-511,979.04

Finding the Fourth Proportional to 919,851.12, 1,269,436.36 and 511,979.04

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Solution

The fourth proportional to 919,851.12, 1,269,436.36 and 511,979.04 is: 706,554.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,851.12 : 1,269,436.36 = 511,979.04 : x
  2. Step 2: Convert to fraction form
    919,851.12/1,269,436.36 = 511,979.04/x
  3. Step 3: Cross multiply
    919,851.12x = 1,269,436.36 × 511,979.04
  4. Step 4: Simplify right side
    919,851.12x = 649,924,808,933.89
  5. Step 5: Solve for x
    x = 649,924,808,933.89/919,851.12
  6. Step 6: Final answer
    x = 706,554.35

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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.