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Finding the Fourth Proportional to 547,561.09, 819,620.92 and 348,106.69

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Solution

The fourth proportional to 547,561.09, 819,620.92 and 348,106.69 is: 521,066.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,561.09 : 819,620.92 = 348,106.69 : x
  2. Step 2: Convert to fraction form
    547,561.09/819,620.92 = 348,106.69/x
  3. Step 3: Cross multiply
    547,561.09x = 819,620.92 × 348,106.69
  4. Step 4: Simplify right side
    547,561.09x = 285,315,525,515.96
  5. Step 5: Solve for x
    x = 285,315,525,515.96/547,561.09
  6. Step 6: Final answer
    x = 521,066.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.