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Finding the Fourth Proportional to 451,124, 676,684.72 and 201,631.04

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Solution

The fourth proportional to 451,124, 676,684.72 and 201,631.04 is: 302,445.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,124 : 676,684.72 = 201,631.04 : x
  2. Step 2: Convert to fraction form
    451,124/676,684.72 = 201,631.04/x
  3. Step 3: Cross multiply
    451,124x = 676,684.72 × 201,631.04
  4. Step 4: Simplify right side
    451,124x = 136,440,643,845.71
  5. Step 5: Solve for x
    x = 136,440,643,845.71/451,124
  6. Step 6: Final answer
    x = 302,445.99

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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.