Home / 1,129,202.01-1,558,329.98-639,132.57

Finding the Fourth Proportional to 1,129,202.01, 1,558,329.98 and 639,132.57

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Solution

The fourth proportional to 1,129,202.01, 1,558,329.98 and 639,132.57 is: 882,020.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,202.01 : 1,558,329.98 = 639,132.57 : x
  2. Step 2: Convert to fraction form
    1,129,202.01/1,558,329.98 = 639,132.57/x
  3. Step 3: Cross multiply
    1,129,202.01x = 1,558,329.98 × 639,132.57
  4. Step 4: Simplify right side
    1,129,202.01x = 995,979,441,829.79
  5. Step 5: Solve for x
    x = 995,979,441,829.79/1,129,202.01
  6. Step 6: Final answer
    x = 882,020.61

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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.