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Finding the Fourth Proportional to 995,409.55, 1,373,605.99 and 565,630.03

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Solution

The fourth proportional to 995,409.55, 1,373,605.99 and 565,630.03 is: 780,535.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,409.55 : 1,373,605.99 = 565,630.03 : x
  2. Step 2: Convert to fraction form
    995,409.55/1,373,605.99 = 565,630.03/x
  3. Step 3: Cross multiply
    995,409.55x = 1,373,605.99 × 565,630.03
  4. Step 4: Simplify right side
    995,409.55x = 776,952,797,331.88
  5. Step 5: Solve for x
    x = 776,952,797,331.88/995,409.55
  6. Step 6: Final answer
    x = 780,535.81

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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.