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Finding the Fourth Proportional to 591,776.40, 887,664.60 and 493,361.40

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Solution

The fourth proportional to 591,776.40, 887,664.60 and 493,361.40 is: 740,042.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,776.40 : 887,664.60 = 493,361.40 : x
  2. Step 2: Convert to fraction form
    591,776.40/887,664.60 = 493,361.40/x
  3. Step 3: Cross multiply
    591,776.40x = 887,664.60 × 493,361.40
  4. Step 4: Simplify right side
    591,776.40x = 437,939,449,786.44
  5. Step 5: Solve for x
    x = 437,939,449,786.44/591,776.40
  6. Step 6: Final answer
    x = 740,042.10

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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.