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Finding the Fourth Proportional to 439,120.58, 605,800.78 and 293,973.11

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Solution

The fourth proportional to 439,120.58, 605,800.78 and 293,973.11 is: 405,558.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,120.58 : 605,800.78 = 293,973.11 : x
  2. Step 2: Convert to fraction form
    439,120.58/605,800.78 = 293,973.11/x
  3. Step 3: Cross multiply
    439,120.58x = 605,800.78 × 293,973.11
  4. Step 4: Simplify right side
    439,120.58x = 178,089,139,337.03
  5. Step 5: Solve for x
    x = 178,089,139,337.03/439,120.58
  6. Step 6: Final answer
    x = 405,558.63

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1.5x scale

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.