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Finding the Fourth Proportional to 455,501.34, 683,666.69 and 242,448.21

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Solution

The fourth proportional to 455,501.34, 683,666.69 and 242,448.21 is: 363,893.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,501.34 : 683,666.69 = 242,448.21 : x
  2. Step 2: Convert to fraction form
    455,501.34/683,666.69 = 242,448.21/x
  3. Step 3: Cross multiply
    455,501.34x = 683,666.69 × 242,448.21
  4. Step 4: Simplify right side
    455,501.34x = 165,753,764,014.88
  5. Step 5: Solve for x
    x = 165,753,764,014.88/455,501.34
  6. Step 6: Final answer
    x = 363,893.03

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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.