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Finding the Fourth Proportional to 356,186.85, 491,612.13 and 327,461.01

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Solution

The fourth proportional to 356,186.85, 491,612.13 and 327,461.01 is: 451,964.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,186.85 : 491,612.13 = 327,461.01 : x
  2. Step 2: Convert to fraction form
    356,186.85/491,612.13 = 327,461.01/x
  3. Step 3: Cross multiply
    356,186.85x = 491,612.13 × 327,461.01
  4. Step 4: Simplify right side
    356,186.85x = 160,983,804,618.05
  5. Step 5: Solve for x
    x = 160,983,804,618.05/356,186.85
  6. Step 6: Final answer
    x = 451,964.48

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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.