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Finding the Fourth Proportional to 403,772.70, 605,659.05 and 373,359.90

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Solution

The fourth proportional to 403,772.70, 605,659.05 and 373,359.90 is: 560,039.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,772.70 : 605,659.05 = 373,359.90 : x
  2. Step 2: Convert to fraction form
    403,772.70/605,659.05 = 373,359.90/x
  3. Step 3: Cross multiply
    403,772.70x = 605,659.05 × 373,359.90
  4. Step 4: Simplify right side
    403,772.70x = 226,128,802,342.10
  5. Step 5: Solve for x
    x = 226,128,802,342.10/403,772.70
  6. Step 6: Final answer
    x = 560,039.85

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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.