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Finding the Fourth Proportional to 329,381.72, 454,550.36 and 193,417.28

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Solution

The fourth proportional to 329,381.72, 454,550.36 and 193,417.28 is: 266,917.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,381.72 : 454,550.36 = 193,417.28 : x
  2. Step 2: Convert to fraction form
    329,381.72/454,550.36 = 193,417.28/x
  3. Step 3: Cross multiply
    329,381.72x = 454,550.36 × 193,417.28
  4. Step 4: Simplify right side
    329,381.72x = 87,917,894,254.22
  5. Step 5: Solve for x
    x = 87,917,894,254.22/329,381.72
  6. Step 6: Final answer
    x = 266,917.95

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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.