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Finding the Fourth Proportional to 329,337.51, 454,487.40 and 178,434.51

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Solution

The fourth proportional to 329,337.51, 454,487.40 and 178,434.51 is: 246,240.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,337.51 : 454,487.40 = 178,434.51 : x
  2. Step 2: Convert to fraction form
    329,337.51/454,487.40 = 178,434.51/x
  3. Step 3: Cross multiply
    329,337.51x = 454,487.40 × 178,434.51
  4. Step 4: Simplify right side
    329,337.51x = 81,096,236,520.17
  5. Step 5: Solve for x
    x = 81,096,236,520.17/329,337.51
  6. Step 6: Final answer
    x = 246,240.51

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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.