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Finding the Fourth Proportional to 547,096.62, 755,118.99 and 355,776.78

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Solution

The fourth proportional to 547,096.62, 755,118.99 and 355,776.78 is: 491,053.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,096.62 : 755,118.99 = 355,776.78 : x
  2. Step 2: Convert to fraction form
    547,096.62/755,118.99 = 355,776.78/x
  3. Step 3: Cross multiply
    547,096.62x = 755,118.99 × 355,776.78
  4. Step 4: Simplify right side
    547,096.62x = 268,653,802,779.05
  5. Step 5: Solve for x
    x = 268,653,802,779.05/547,096.62
  6. Step 6: Final answer
    x = 491,053.67

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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.