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Finding the Fourth Proportional to 546,628.10, 754,347.92 and 304,904.43

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Solution

The fourth proportional to 546,628.10, 754,347.92 and 304,904.43 is: 420,768.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,628.10 : 754,347.92 = 304,904.43 : x
  2. Step 2: Convert to fraction form
    546,628.10/754,347.92 = 304,904.43/x
  3. Step 3: Cross multiply
    546,628.10x = 754,347.92 × 304,904.43
  4. Step 4: Simplify right side
    546,628.10x = 230,004,021,044.76
  5. Step 5: Solve for x
    x = 230,004,021,044.76/546,628.10
  6. Step 6: Final answer
    x = 420,768.75

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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.