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Finding the Fourth Proportional to 546,721.92, 754,068.78 and 401,481.90

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Solution

The fourth proportional to 546,721.92, 754,068.78 and 401,481.90 is: 553,745.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,721.92 : 754,068.78 = 401,481.90 : x
  2. Step 2: Convert to fraction form
    546,721.92/754,068.78 = 401,481.90/x
  3. Step 3: Cross multiply
    546,721.92x = 754,068.78 × 401,481.90
  4. Step 4: Simplify right side
    546,721.92x = 302,744,966,525.08
  5. Step 5: Solve for x
    x = 302,744,966,525.08/546,721.92
  6. Step 6: Final answer
    x = 553,745.80

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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.