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Finding the Fourth Proportional to 931,627,153.80, 1,396,253,845.80 and 495,136,945.80

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Solution

The fourth proportional to 931,627,153.80, 1,396,253,845.80 and 495,136,945.80 is: 742,074,618.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,627,153.80 : 1,396,253,845.80 = 495,136,945.80 : x
  2. Step 2: Convert to fraction form
    931,627,153.80/1,396,253,845.80 = 495,136,945.80/x
  3. Step 3: Cross multiply
    931,627,153.80x = 1,396,253,845.80 × 495,136,945.80
  4. Step 4: Simplify right side
    931,627,153.80x = 691,336,864,770,916,096
  5. Step 5: Solve for x
    x = 691,336,864,770,916,096/931,627,153.80
  6. Step 6: Final answer
    x = 742,074,618.53

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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.