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Finding the Fourth Proportional to 539,905.14, 744,888.69 and 349,159.86

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Solution

The fourth proportional to 539,905.14, 744,888.69 and 349,159.86 is: 481,723.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,905.14 : 744,888.69 = 349,159.86 : x
  2. Step 2: Convert to fraction form
    539,905.14/744,888.69 = 349,159.86/x
  3. Step 3: Cross multiply
    539,905.14x = 744,888.69 × 349,159.86
  4. Step 4: Simplify right side
    539,905.14x = 260,085,230,715.98
  5. Step 5: Solve for x
    x = 260,085,230,715.98/539,905.14
  6. Step 6: Final answer
    x = 481,723.94

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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.