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Finding the Fourth Proportional to 449,264.88, 670,984.56 and 407,060.64

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Solution

The fourth proportional to 449,264.88, 670,984.56 and 407,060.64 is: 607,951.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,264.88 : 670,984.56 = 407,060.64 : x
  2. Step 2: Convert to fraction form
    449,264.88/670,984.56 = 407,060.64/x
  3. Step 3: Cross multiply
    449,264.88x = 670,984.56 × 407,060.64
  4. Step 4: Simplify right side
    449,264.88x = 273,131,404,423.72
  5. Step 5: Solve for x
    x = 273,131,404,423.72/449,264.88
  6. Step 6: Final answer
    x = 607,951.83

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.