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Finding the Fourth Proportional to 609,653.36, 914,145.96 and 188,812.40

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Solution

The fourth proportional to 609,653.36, 914,145.96 and 188,812.40 is: 283,115.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,653.36 : 914,145.96 = 188,812.40 : x
  2. Step 2: Convert to fraction form
    609,653.36/914,145.96 = 188,812.40/x
  3. Step 3: Cross multiply
    609,653.36x = 914,145.96 × 188,812.40
  4. Step 4: Simplify right side
    609,653.36x = 172,602,092,657.90
  5. Step 5: Solve for x
    x = 172,602,092,657.90/609,653.36
  6. Step 6: Final answer
    x = 283,115.13

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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.