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Finding the Fourth Proportional to 358,666.57, 494,848.20 and 203,592.07

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Solution

The fourth proportional to 358,666.57, 494,848.20 and 203,592.07 is: 280,893.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,666.57 : 494,848.20 = 203,592.07 : x
  2. Step 2: Convert to fraction form
    358,666.57/494,848.20 = 203,592.07/x
  3. Step 3: Cross multiply
    358,666.57x = 494,848.20 × 203,592.07
  4. Step 4: Simplify right side
    358,666.57x = 100,747,169,373.77
  5. Step 5: Solve for x
    x = 100,747,169,373.77/358,666.57
  6. Step 6: Final answer
    x = 280,893.67

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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.