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Finding the Fourth Proportional to 225,007.20, 337,510.80 and 206,636.40

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Solution

The fourth proportional to 225,007.20, 337,510.80 and 206,636.40 is: 309,954.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,007.20 : 337,510.80 = 206,636.40 : x
  2. Step 2: Convert to fraction form
    225,007.20/337,510.80 = 206,636.40/x
  3. Step 3: Cross multiply
    225,007.20x = 337,510.80 × 206,636.40
  4. Step 4: Simplify right side
    225,007.20x = 69,742,016,673.12
  5. Step 5: Solve for x
    x = 69,742,016,673.12/225,007.20
  6. Step 6: Final answer
    x = 309,954.60

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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.