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Finding the Fourth Proportional to 540,462.64, 745,735.80 and 339,167.92

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Solution

The fourth proportional to 540,462.64, 745,735.80 and 339,167.92 is: 467,987.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,462.64 : 745,735.80 = 339,167.92 : x
  2. Step 2: Convert to fraction form
    540,462.64/745,735.80 = 339,167.92/x
  3. Step 3: Cross multiply
    540,462.64x = 745,735.80 × 339,167.92
  4. Step 4: Simplify right side
    540,462.64x = 252,929,660,155.54
  5. Step 5: Solve for x
    x = 252,929,660,155.54/540,462.64
  6. Step 6: Final answer
    x = 467,987.32

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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.