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Finding the Fourth Proportional to 449,551.40, 619,117.98 and 439,753.64

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Solution

The fourth proportional to 449,551.40, 619,117.98 and 439,753.64 is: 605,624.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,551.40 : 619,117.98 = 439,753.64 : x
  2. Step 2: Convert to fraction form
    449,551.40/619,117.98 = 439,753.64/x
  3. Step 3: Cross multiply
    449,551.40x = 619,117.98 × 439,753.64
  4. Step 4: Simplify right side
    449,551.40x = 272,259,385,294.45
  5. Step 5: Solve for x
    x = 272,259,385,294.45/449,551.40
  6. Step 6: Final answer
    x = 605,624.60

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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.