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Finding the Fourth Proportional to 662,818.14, 914,688.72 and 361,012.14

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Solution

The fourth proportional to 662,818.14, 914,688.72 and 361,012.14 is: 498,196.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,818.14 : 914,688.72 = 361,012.14 : x
  2. Step 2: Convert to fraction form
    662,818.14/914,688.72 = 361,012.14/x
  3. Step 3: Cross multiply
    662,818.14x = 914,688.72 × 361,012.14
  4. Step 4: Simplify right side
    662,818.14x = 330,213,732,241.06
  5. Step 5: Solve for x
    x = 330,213,732,241.06/662,818.14
  6. Step 6: Final answer
    x = 498,196.58

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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.