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Finding the Fourth Proportional to 539,723.15, 744,505.71 and 348,736.54

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Solution

The fourth proportional to 539,723.15, 744,505.71 and 348,736.54 is: 481,054.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,723.15 : 744,505.71 = 348,736.54 : x
  2. Step 2: Convert to fraction form
    539,723.15/744,505.71 = 348,736.54/x
  3. Step 3: Cross multiply
    539,723.15x = 744,505.71 × 348,736.54
  4. Step 4: Simplify right side
    539,723.15x = 259,636,340,423.73
  5. Step 5: Solve for x
    x = 259,636,340,423.73/539,723.15
  6. Step 6: Final answer
    x = 481,054.67

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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.