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Finding the Fourth Proportional to 317,510.55, 476,016.12 and 217,367.19

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Solution

The fourth proportional to 317,510.55, 476,016.12 and 217,367.19 is: 325,879.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,510.55 : 476,016.12 = 217,367.19 : x
  2. Step 2: Convert to fraction form
    317,510.55/476,016.12 = 217,367.19/x
  3. Step 3: Cross multiply
    317,510.55x = 476,016.12 × 217,367.19
  4. Step 4: Simplify right side
    317,510.55x = 103,470,286,399.10
  5. Step 5: Solve for x
    x = 103,470,286,399.10/317,510.55
  6. Step 6: Final answer
    x = 325,879.84

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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.