Home / 919,134.15-1,268,374.68-511,224.45

Finding the Fourth Proportional to 919,134.15, 1,268,374.68 and 511,224.45

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Solution

The fourth proportional to 919,134.15, 1,268,374.68 and 511,224.45 is: 705,472.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,134.15 : 1,268,374.68 = 511,224.45 : x
  2. Step 2: Convert to fraction form
    919,134.15/1,268,374.68 = 511,224.45/x
  3. Step 3: Cross multiply
    919,134.15x = 1,268,374.68 × 511,224.45
  4. Step 4: Simplify right side
    919,134.15x = 648,424,148,176.93
  5. Step 5: Solve for x
    x = 648,424,148,176.93/919,134.15
  6. Step 6: Final answer
    x = 705,472.81

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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.