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Finding the Fourth Proportional to 438,606.67, 605,312.37 and 348,704.56

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Solution

The fourth proportional to 438,606.67, 605,312.37 and 348,704.56 is: 481,240.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,606.67 : 605,312.37 = 348,704.56 : x
  2. Step 2: Convert to fraction form
    438,606.67/605,312.37 = 348,704.56/x
  3. Step 3: Cross multiply
    438,606.67x = 605,312.37 × 348,704.56
  4. Step 4: Simplify right side
    438,606.67x = 211,075,183,643.41
  5. Step 5: Solve for x
    x = 211,075,183,643.41/438,606.67
  6. Step 6: Final answer
    x = 481,240.25

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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.