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Finding the Fourth Proportional to 525,136.96, 787,699.84 and 356,239.04

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Solution

The fourth proportional to 525,136.96, 787,699.84 and 356,239.04 is: 534,354.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,136.96 : 787,699.84 = 356,239.04 : x
  2. Step 2: Convert to fraction form
    525,136.96/787,699.84 = 356,239.04/x
  3. Step 3: Cross multiply
    525,136.96x = 787,699.84 × 356,239.04
  4. Step 4: Simplify right side
    525,136.96x = 280,609,434,809.75
  5. Step 5: Solve for x
    x = 280,609,434,809.75/525,136.96
  6. Step 6: Final answer
    x = 534,354.76

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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.