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Finding the Fourth Proportional to 329,855.66, 455,201.70 and 178,952.66

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Solution

The fourth proportional to 329,855.66, 455,201.70 and 178,952.66 is: 246,955.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,855.66 : 455,201.70 = 178,952.66 : x
  2. Step 2: Convert to fraction form
    329,855.66/455,201.70 = 178,952.66/x
  3. Step 3: Cross multiply
    329,855.66x = 455,201.70 × 178,952.66
  4. Step 4: Simplify right side
    329,855.66x = 81,459,555,051.52
  5. Step 5: Solve for x
    x = 81,459,555,051.52/329,855.66
  6. Step 6: Final answer
    x = 246,955.15

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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.