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Finding the Fourth Proportional to 995,410.30, 1,373,607.03 and 565,630.78

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Solution

The fourth proportional to 995,410.30, 1,373,607.03 and 565,630.78 is: 780,536.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,410.30 : 1,373,607.03 = 565,630.78 : x
  2. Step 2: Convert to fraction form
    995,410.30/1,373,607.03 = 565,630.78/x
  3. Step 3: Cross multiply
    995,410.30x = 1,373,607.03 × 565,630.78
  4. Step 4: Simplify right side
    995,410.30x = 776,954,415,792.38
  5. Step 5: Solve for x
    x = 776,954,415,792.38/995,410.30
  6. Step 6: Final answer
    x = 780,536.85

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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.