Home / 919,605.72-1,268,639.06-664,552.92

Finding the Fourth Proportional to 919,605.72, 1,268,639.06 and 664,552.92

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Solution

The fourth proportional to 919,605.72, 1,268,639.06 and 664,552.92 is: 916,781.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,605.72 : 1,268,639.06 = 664,552.92 : x
  2. Step 2: Convert to fraction form
    919,605.72/1,268,639.06 = 664,552.92/x
  3. Step 3: Cross multiply
    919,605.72x = 1,268,639.06 × 664,552.92
  4. Step 4: Simplify right side
    919,605.72x = 843,077,791,749.06
  5. Step 5: Solve for x
    x = 843,077,791,749.06/919,605.72
  6. Step 6: Final answer
    x = 916,781.80

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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.