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Finding the Fourth Proportional to 317,626.40, 476,002.20 and 210,706.40

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Solution

The fourth proportional to 317,626.40, 476,002.20 and 210,706.40 is: 315,769.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,626.40 : 476,002.20 = 210,706.40 : x
  2. Step 2: Convert to fraction form
    317,626.40/476,002.20 = 210,706.40/x
  3. Step 3: Cross multiply
    317,626.40x = 476,002.20 × 210,706.40
  4. Step 4: Simplify right side
    317,626.40x = 100,296,709,954.08
  5. Step 5: Solve for x
    x = 100,296,709,954.08/317,626.40
  6. Step 6: Final answer
    x = 315,769.44

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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.