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Finding the Fourth Proportional to 544,403.40, 815,008.22 and 381,733.40

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Solution

The fourth proportional to 544,403.40, 815,008.22 and 381,733.40 is: 571,480.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,403.40 : 815,008.22 = 381,733.40 : x
  2. Step 2: Convert to fraction form
    544,403.40/815,008.22 = 381,733.40/x
  3. Step 3: Cross multiply
    544,403.40x = 815,008.22 × 381,733.40
  4. Step 4: Simplify right side
    544,403.40x = 311,115,852,864.84
  5. Step 5: Solve for x
    x = 311,115,852,864.84/544,403.40
  6. Step 6: Final answer
    x = 571,480.36

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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.