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Finding the Fourth Proportional to 619,989.77, 930,329.11 and 335,676.13

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Solution

The fourth proportional to 619,989.77, 930,329.11 and 335,676.13 is: 503,700.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,989.77 : 930,329.11 = 335,676.13 : x
  2. Step 2: Convert to fraction form
    619,989.77/930,329.11 = 335,676.13/x
  3. Step 3: Cross multiply
    619,989.77x = 930,329.11 × 335,676.13
  4. Step 4: Simplify right side
    619,989.77x = 312,289,275,271.14
  5. Step 5: Solve for x
    x = 312,289,275,271.14/619,989.77
  6. Step 6: Final answer
    x = 503,700.69

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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.