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Finding the Fourth Proportional to 539,245.31, 744,428.21 and 335,361.92

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Solution

The fourth proportional to 539,245.31, 744,428.21 and 335,361.92 is: 462,967.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,245.31 : 744,428.21 = 335,361.92 : x
  2. Step 2: Convert to fraction form
    539,245.31/744,428.21 = 335,361.92/x
  3. Step 3: Cross multiply
    539,245.31x = 744,428.21 × 335,361.92
  4. Step 4: Simplify right side
    539,245.31x = 249,652,868,408.81
  5. Step 5: Solve for x
    x = 249,652,868,408.81/539,245.31
  6. Step 6: Final answer
    x = 462,967.16

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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.