Home / 928,857.16-1,280,527.14-622,988.20

Finding the Fourth Proportional to 928,857.16, 1,280,527.14 and 622,988.20

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Solution

The fourth proportional to 928,857.16, 1,280,527.14 and 622,988.20 is: 858,854.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,857.16 : 1,280,527.14 = 622,988.20 : x
  2. Step 2: Convert to fraction form
    928,857.16/1,280,527.14 = 622,988.20/x
  3. Step 3: Cross multiply
    928,857.16x = 1,280,527.14 × 622,988.20
  4. Step 4: Simplify right side
    928,857.16x = 797,753,297,999.75
  5. Step 5: Solve for x
    x = 797,753,297,999.75/928,857.16
  6. Step 6: Final answer
    x = 858,854.66

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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.