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Finding the Fourth Proportional to 539,659.13, 744,817.07 and 313,435.85

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Solution

The fourth proportional to 539,659.13, 744,817.07 and 313,435.85 is: 432,592.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,659.13 : 744,817.07 = 313,435.85 : x
  2. Step 2: Convert to fraction form
    539,659.13/744,817.07 = 313,435.85/x
  3. Step 3: Cross multiply
    539,659.13x = 744,817.07 × 313,435.85
  4. Step 4: Simplify right side
    539,659.13x = 233,452,368,489.46
  5. Step 5: Solve for x
    x = 233,452,368,489.46/539,659.13
  6. Step 6: Final answer
    x = 432,592.27

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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.