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Finding the Fourth Proportional to 331,626, 457,647.12 and 180,726.24

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Solution

The fourth proportional to 331,626, 457,647.12 and 180,726.24 is: 249,403.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,626 : 457,647.12 = 180,726.24 : x
  2. Step 2: Convert to fraction form
    331,626/457,647.12 = 180,726.24/x
  3. Step 3: Cross multiply
    331,626x = 457,647.12 × 180,726.24
  4. Step 4: Simplify right side
    331,626x = 82,708,843,244.43
  5. Step 5: Solve for x
    x = 82,708,843,244.43/331,626
  6. Step 6: Final answer
    x = 249,403.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.