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Finding the Fourth Proportional to 620,401.77, 856,103.27 and 344,767.75

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Solution

The fourth proportional to 620,401.77, 856,103.27 and 344,767.75 is: 475,751.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,401.77 : 856,103.27 = 344,767.75 : x
  2. Step 2: Convert to fraction form
    620,401.77/856,103.27 = 344,767.75/x
  3. Step 3: Cross multiply
    620,401.77x = 856,103.27 × 344,767.75
  4. Step 4: Simplify right side
    620,401.77x = 295,156,798,165.54
  5. Step 5: Solve for x
    x = 295,156,798,165.54/620,401.77
  6. Step 6: Final answer
    x = 475,751.06

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1.5x scale

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.