Home / 927,543.44-1,389,503.19-639,303.86

Finding the Fourth Proportional to 927,543.44, 1,389,503.19 and 639,303.86

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Solution

The fourth proportional to 927,543.44, 1,389,503.19 and 639,303.86 is: 957,706.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,543.44 : 1,389,503.19 = 639,303.86 : x
  2. Step 2: Convert to fraction form
    927,543.44/1,389,503.19 = 639,303.86/x
  3. Step 3: Cross multiply
    927,543.44x = 1,389,503.19 × 639,303.86
  4. Step 4: Simplify right side
    927,543.44x = 888,314,758,720.46
  5. Step 5: Solve for x
    x = 888,314,758,720.46/927,543.44
  6. Step 6: Final answer
    x = 957,706.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.