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Finding the Fourth Proportional to 451,703.17, 676,371.07 and 317,858.77

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Solution

The fourth proportional to 451,703.17, 676,371.07 and 317,858.77 is: 475,955.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,703.17 : 676,371.07 = 317,858.77 : x
  2. Step 2: Convert to fraction form
    451,703.17/676,371.07 = 317,858.77/x
  3. Step 3: Cross multiply
    451,703.17x = 676,371.07 × 317,858.77
  4. Step 4: Simplify right side
    451,703.17x = 214,990,476,373.78
  5. Step 5: Solve for x
    x = 214,990,476,373.78/451,703.17
  6. Step 6: Final answer
    x = 475,955.21

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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.