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Finding the Fourth Proportional to 377,047.12, 565,541.40 and 219,174.80

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Solution

The fourth proportional to 377,047.12, 565,541.40 and 219,174.80 is: 328,745.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,047.12 : 565,541.40 = 219,174.80 : x
  2. Step 2: Convert to fraction form
    377,047.12/565,541.40 = 219,174.80/x
  3. Step 3: Cross multiply
    377,047.12x = 565,541.40 × 219,174.80
  4. Step 4: Simplify right side
    377,047.12x = 123,952,423,236.72
  5. Step 5: Solve for x
    x = 123,952,423,236.72/377,047.12
  6. Step 6: Final answer
    x = 328,745.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.