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Finding the Fourth Proportional to 543,186.08, 749,601.76 and 328,469.68

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Solution

The fourth proportional to 543,186.08, 749,601.76 and 328,469.68 is: 453,291.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,186.08 : 749,601.76 = 328,469.68 : x
  2. Step 2: Convert to fraction form
    543,186.08/749,601.76 = 328,469.68/x
  3. Step 3: Cross multiply
    543,186.08x = 749,601.76 × 328,469.68
  4. Step 4: Simplify right side
    543,186.08x = 246,221,450,234.64
  5. Step 5: Solve for x
    x = 246,221,450,234.64/543,186.08
  6. Step 6: Final answer
    x = 453,291.16

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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.