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Finding the Fourth Proportional to 372,419.52, 514,113.12 and 238,361.28

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Solution

The fourth proportional to 372,419.52, 514,113.12 and 238,361.28 is: 329,050.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,419.52 : 514,113.12 = 238,361.28 : x
  2. Step 2: Convert to fraction form
    372,419.52/514,113.12 = 238,361.28/x
  3. Step 3: Cross multiply
    372,419.52x = 514,113.12 × 238,361.28
  4. Step 4: Simplify right side
    372,419.52x = 122,544,661,347.99
  5. Step 5: Solve for x
    x = 122,544,661,347.99/372,419.52
  6. Step 6: Final answer
    x = 329,050.05

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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.