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Finding the Fourth Proportional to 449,036.01, 619,074.23 and 372,265.29

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Solution

The fourth proportional to 449,036.01, 619,074.23 and 372,265.29 is: 513,232.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,036.01 : 619,074.23 = 372,265.29 : x
  2. Step 2: Convert to fraction form
    449,036.01/619,074.23 = 372,265.29/x
  3. Step 3: Cross multiply
    449,036.01x = 619,074.23 × 372,265.29
  4. Step 4: Simplify right side
    449,036.01x = 230,459,845,901.15
  5. Step 5: Solve for x
    x = 230,459,845,901.15/449,036.01
  6. Step 6: Final answer
    x = 513,232.44

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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.