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Finding the Fourth Proportional to 664,267.82, 916,711.71 and 362,478.38

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Solution

The fourth proportional to 664,267.82, 916,711.71 and 362,478.38 is: 500,232.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,267.82 : 916,711.71 = 362,478.38 : x
  2. Step 2: Convert to fraction form
    664,267.82/916,711.71 = 362,478.38/x
  3. Step 3: Cross multiply
    664,267.82x = 916,711.71 × 362,478.38
  4. Step 4: Simplify right side
    664,267.82x = 332,288,175,567.83
  5. Step 5: Solve for x
    x = 332,288,175,567.83/664,267.82
  6. Step 6: Final answer
    x = 500,232.23

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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.