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Finding the Fourth Proportional to 478,476.26, 717,825.58 and 162,935.90

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Solution

The fourth proportional to 478,476.26, 717,825.58 and 162,935.90 is: 244,441.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,476.26 : 717,825.58 = 162,935.90 : x
  2. Step 2: Convert to fraction form
    478,476.26/717,825.58 = 162,935.90/x
  3. Step 3: Cross multiply
    478,476.26x = 717,825.58 × 162,935.90
  4. Step 4: Simplify right side
    478,476.26x = 116,959,556,920.32
  5. Step 5: Solve for x
    x = 116,959,556,920.32/478,476.26
  6. Step 6: Final answer
    x = 244,441.71

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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.