Home / 903,963.38-1,247,274.56-521,768.72

Finding the Fourth Proportional to 903,963.38, 1,247,274.56 and 521,768.72

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Solution

The fourth proportional to 903,963.38, 1,247,274.56 and 521,768.72 is: 719,928.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,963.38 : 1,247,274.56 = 521,768.72 : x
  2. Step 2: Convert to fraction form
    903,963.38/1,247,274.56 = 521,768.72/x
  3. Step 3: Cross multiply
    903,963.38x = 1,247,274.56 × 521,768.72
  4. Step 4: Simplify right side
    903,963.38x = 650,788,850,659.76
  5. Step 5: Solve for x
    x = 650,788,850,659.76/903,963.38
  6. Step 6: Final answer
    x = 719,928.33

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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.