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Finding the Fourth Proportional to 449,366.10, 619,840.48 and 341,700.10

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Solution

The fourth proportional to 449,366.10, 619,840.48 and 341,700.10 is: 471,329.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,366.10 : 619,840.48 = 341,700.10 : x
  2. Step 2: Convert to fraction form
    449,366.10/619,840.48 = 341,700.10/x
  3. Step 3: Cross multiply
    449,366.10x = 619,840.48 × 341,700.10
  4. Step 4: Simplify right side
    449,366.10x = 211,799,554,000.05
  5. Step 5: Solve for x
    x = 211,799,554,000.05/449,366.10
  6. Step 6: Final answer
    x = 471,329.62

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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.