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Finding the Fourth Proportional to 324,601.80, 486,902.70 and 212,627.40

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Solution

The fourth proportional to 324,601.80, 486,902.70 and 212,627.40 is: 318,941.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,601.80 : 486,902.70 = 212,627.40 : x
  2. Step 2: Convert to fraction form
    324,601.80/486,902.70 = 212,627.40/x
  3. Step 3: Cross multiply
    324,601.80x = 486,902.70 × 212,627.40
  4. Step 4: Simplify right side
    324,601.80x = 103,528,855,153.98
  5. Step 5: Solve for x
    x = 103,528,855,153.98/324,601.80
  6. Step 6: Final answer
    x = 318,941.10

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1.5x scale

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.