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Finding the Fourth Proportional to 546,990.53, 754,884.81 and 305,320.19

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Solution

The fourth proportional to 546,990.53, 754,884.81 and 305,320.19 is: 421,363.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,990.53 : 754,884.81 = 305,320.19 : x
  2. Step 2: Convert to fraction form
    546,990.53/754,884.81 = 305,320.19/x
  3. Step 3: Cross multiply
    546,990.53x = 754,884.81 × 305,320.19
  4. Step 4: Simplify right side
    546,990.53x = 230,481,569,842.89
  5. Step 5: Solve for x
    x = 230,481,569,842.89/546,990.53
  6. Step 6: Final answer
    x = 421,363.00

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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.