Home / 919,486.10-1,268,741.29-511,577.45

Finding the Fourth Proportional to 919,486.10, 1,268,741.29 and 511,577.45

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Solution

The fourth proportional to 919,486.10, 1,268,741.29 and 511,577.45 is: 705,893.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,486.10 : 1,268,741.29 = 511,577.45 : x
  2. Step 2: Convert to fraction form
    919,486.10/1,268,741.29 = 511,577.45/x
  3. Step 3: Cross multiply
    919,486.10x = 1,268,741.29 × 511,577.45
  4. Step 4: Simplify right side
    919,486.10x = 649,059,439,078.92
  5. Step 5: Solve for x
    x = 649,059,439,078.92/919,486.10
  6. Step 6: Final answer
    x = 705,893.70

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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.