Home / 928,945.06-1,281,959.13-521,137.60

Finding the Fourth Proportional to 928,945.06, 1,281,959.13 and 521,137.60

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Solution

The fourth proportional to 928,945.06, 1,281,959.13 and 521,137.60 is: 719,178.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,945.06 : 1,281,959.13 = 521,137.60 : x
  2. Step 2: Convert to fraction form
    928,945.06/1,281,959.13 = 521,137.60/x
  3. Step 3: Cross multiply
    928,945.06x = 1,281,959.13 × 521,137.60
  4. Step 4: Simplify right side
    928,945.06x = 668,077,104,306.29
  5. Step 5: Solve for x
    x = 668,077,104,306.29/928,945.06
  6. Step 6: Final answer
    x = 719,178.27

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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.