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Finding the Fourth Proportional to 490,291.20, 735,523.20 and 174,931.20

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Solution

The fourth proportional to 490,291.20, 735,523.20 and 174,931.20 is: 262,427.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,291.20 : 735,523.20 = 174,931.20 : x
  2. Step 2: Convert to fraction form
    490,291.20/735,523.20 = 174,931.20/x
  3. Step 3: Cross multiply
    490,291.20x = 735,523.20 × 174,931.20
  4. Step 4: Simplify right side
    490,291.20x = 128,665,956,003.84
  5. Step 5: Solve for x
    x = 128,665,956,003.84/490,291.20
  6. Step 6: Final answer
    x = 262,427.63

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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.