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Finding the Fourth Proportional to 331,471.32, 457,430.54 and 180,568.32

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Solution

The fourth proportional to 331,471.32, 457,430.54 and 180,568.32 is: 249,184.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,471.32 : 457,430.54 = 180,568.32 : x
  2. Step 2: Convert to fraction form
    331,471.32/457,430.54 = 180,568.32/x
  3. Step 3: Cross multiply
    331,471.32x = 457,430.54 × 180,568.32
  4. Step 4: Simplify right side
    331,471.32x = 82,597,463,221.65
  5. Step 5: Solve for x
    x = 82,597,463,221.65/331,471.32
  6. Step 6: Final answer
    x = 249,184.34

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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.