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Finding the Fourth Proportional to 636,699.46, 954,720.57 and 187,361.98

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Solution

The fourth proportional to 636,699.46, 954,720.57 and 187,361.98 is: 280,946.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,699.46 : 954,720.57 = 187,361.98 : x
  2. Step 2: Convert to fraction form
    636,699.46/954,720.57 = 187,361.98/x
  3. Step 3: Cross multiply
    636,699.46x = 954,720.57 × 187,361.98
  4. Step 4: Simplify right side
    636,699.46x = 178,878,336,341.93
  5. Step 5: Solve for x
    x = 178,878,336,341.93/636,699.46
  6. Step 6: Final answer
    x = 280,946.27

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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.