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Finding the Fourth Proportional to 542,389.73, 748,580.67 and 346,240.94

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Solution

The fourth proportional to 542,389.73, 748,580.67 and 346,240.94 is: 477,865.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,389.73 : 748,580.67 = 346,240.94 : x
  2. Step 2: Convert to fraction form
    542,389.73/748,580.67 = 346,240.94/x
  3. Step 3: Cross multiply
    542,389.73x = 748,580.67 × 346,240.94
  4. Step 4: Simplify right side
    542,389.73x = 259,189,271,103.73
  5. Step 5: Solve for x
    x = 259,189,271,103.73/542,389.73
  6. Step 6: Final answer
    x = 477,865.38

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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.