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Finding the Fourth Proportional to 620,122.60, 927,851.10 and 410,170.60

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Solution

The fourth proportional to 620,122.60, 927,851.10 and 410,170.60 is: 613,712.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,122.60 : 927,851.10 = 410,170.60 : x
  2. Step 2: Convert to fraction form
    620,122.60/927,851.10 = 410,170.60/x
  3. Step 3: Cross multiply
    620,122.60x = 927,851.10 × 410,170.60
  4. Step 4: Simplify right side
    620,122.60x = 380,577,242,397.66
  5. Step 5: Solve for x
    x = 380,577,242,397.66/620,122.60
  6. Step 6: Final answer
    x = 613,712.91

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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.