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Finding the Fourth Proportional to 414,367.64, 621,555.06 and 133,884.92

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Solution

The fourth proportional to 414,367.64, 621,555.06 and 133,884.92 is: 200,828.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,367.64 : 621,555.06 = 133,884.92 : x
  2. Step 2: Convert to fraction form
    414,367.64/621,555.06 = 133,884.92/x
  3. Step 3: Cross multiply
    414,367.64x = 621,555.06 × 133,884.92
  4. Step 4: Simplify right side
    414,367.64x = 83,216,849,483.70
  5. Step 5: Solve for x
    x = 83,216,849,483.70/414,367.64
  6. Step 6: Final answer
    x = 200,828.54

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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.