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Finding the Fourth Proportional to 449,369.61, 619,845.28 and 341,703.60

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Solution

The fourth proportional to 449,369.61, 619,845.28 and 341,703.60 is: 471,334.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,369.61 : 619,845.28 = 341,703.60 : x
  2. Step 2: Convert to fraction form
    449,369.61/619,845.28 = 341,703.60/x
  3. Step 3: Cross multiply
    449,369.61x = 619,845.28 × 341,703.60
  4. Step 4: Simplify right side
    449,369.61x = 211,803,363,619.01
  5. Step 5: Solve for x
    x = 211,803,363,619.01/449,369.61
  6. Step 6: Final answer
    x = 471,334.42

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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.