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Finding the Fourth Proportional to 544,066.74, 815,993.87 and 517,061.75

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Solution

The fourth proportional to 544,066.74, 815,993.87 and 517,061.75 is: 775,491.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,066.74 : 815,993.87 = 517,061.75 : x
  2. Step 2: Convert to fraction form
    544,066.74/815,993.87 = 517,061.75/x
  3. Step 3: Cross multiply
    544,066.74x = 815,993.87 × 517,061.75
  4. Step 4: Simplify right side
    544,066.74x = 421,919,211,746.19
  5. Step 5: Solve for x
    x = 421,919,211,746.19/544,066.74
  6. Step 6: Final answer
    x = 775,491.65

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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.