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Finding the Fourth Proportional to 546,391.79, 754,020.66 and 320,037.29

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Solution

The fourth proportional to 546,391.79, 754,020.66 and 320,037.29 is: 441,651.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,391.79 : 754,020.66 = 320,037.29 : x
  2. Step 2: Convert to fraction form
    546,391.79/754,020.66 = 320,037.29/x
  3. Step 3: Cross multiply
    546,391.79x = 754,020.66 × 320,037.29
  4. Step 4: Simplify right side
    546,391.79x = 241,314,724,860.31
  5. Step 5: Solve for x
    x = 241,314,724,860.31/546,391.79
  6. Step 6: Final answer
    x = 441,651.45

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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.