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Finding the Fourth Proportional to 484,648.22, 669,143.76 and 303,433.40

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Solution

The fourth proportional to 484,648.22, 669,143.76 and 303,433.40 is: 418,944.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,648.22 : 669,143.76 = 303,433.40 : x
  2. Step 2: Convert to fraction form
    484,648.22/669,143.76 = 303,433.40/x
  3. Step 3: Cross multiply
    484,648.22x = 669,143.76 × 303,433.40
  4. Step 4: Simplify right side
    484,648.22x = 203,040,566,185.58
  5. Step 5: Solve for x
    x = 203,040,566,185.58/484,648.22
  6. Step 6: Final answer
    x = 418,944.21

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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.