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Finding the Fourth Proportional to 539,900.64, 744,882.48 and 349,155.36

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Solution

The fourth proportional to 539,900.64, 744,882.48 and 349,155.36 is: 481,717.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,900.64 : 744,882.48 = 349,155.36 : x
  2. Step 2: Convert to fraction form
    539,900.64/744,882.48 = 349,155.36/x
  3. Step 3: Cross multiply
    539,900.64x = 744,882.48 × 349,155.36
  4. Step 4: Simplify right side
    539,900.64x = 260,079,710,462.09
  5. Step 5: Solve for x
    x = 260,079,710,462.09/539,900.64
  6. Step 6: Final answer
    x = 481,717.73

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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.