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Finding the Fourth Proportional to 322,482.60, 483,723.90 and 265,401.90

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Solution

The fourth proportional to 322,482.60, 483,723.90 and 265,401.90 is: 398,102.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,482.60 : 483,723.90 = 265,401.90 : x
  2. Step 2: Convert to fraction form
    322,482.60/483,723.90 = 265,401.90/x
  3. Step 3: Cross multiply
    322,482.60x = 483,723.90 × 265,401.90
  4. Step 4: Simplify right side
    322,482.60x = 128,381,242,135.41
  5. Step 5: Solve for x
    x = 128,381,242,135.41/322,482.60
  6. Step 6: Final answer
    x = 398,102.85

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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.