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Finding the Fourth Proportional to 372,264.40, 558,396.60 and 330,930.10

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Solution

The fourth proportional to 372,264.40, 558,396.60 and 330,930.10 is: 496,395.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,264.40 : 558,396.60 = 330,930.10 : x
  2. Step 2: Convert to fraction form
    372,264.40/558,396.60 = 330,930.10/x
  3. Step 3: Cross multiply
    372,264.40x = 558,396.60 × 330,930.10
  4. Step 4: Simplify right side
    372,264.40x = 184,790,242,677.66
  5. Step 5: Solve for x
    x = 184,790,242,677.66/372,264.40
  6. Step 6: Final answer
    x = 496,395.15

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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.