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Finding the Fourth Proportional to 331,434.96, 457,381.96 and 180,531.92

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Solution

The fourth proportional to 331,434.96, 457,381.96 and 180,531.92 is: 249,134.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,434.96 : 457,381.96 = 180,531.92 : x
  2. Step 2: Convert to fraction form
    331,434.96/457,381.96 = 180,531.92/x
  3. Step 3: Cross multiply
    331,434.96x = 457,381.96 × 180,531.92
  4. Step 4: Simplify right side
    331,434.96x = 82,572,043,412.16
  5. Step 5: Solve for x
    x = 82,572,043,412.16/331,434.96
  6. Step 6: Final answer
    x = 249,134.98

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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.