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Finding the Fourth Proportional to 938,629,159.70, 1,316,801,801.50 and 938,629,159.70

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Solution

The fourth proportional to 938,629,159.70, 1,316,801,801.50 and 938,629,159.70 is: 1,316,801,801.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,629,159.70 : 1,316,801,801.50 = 938,629,159.70 : x
  2. Step 2: Convert to fraction form
    938,629,159.70/1,316,801,801.50 = 938,629,159.70/x
  3. Step 3: Cross multiply
    938,629,159.70x = 1,316,801,801.50 × 938,629,159.70
  4. Step 4: Simplify right side
    938,629,159.70x = 1,235,988,568,433,391,360
  5. Step 5: Solve for x
    x = 1,235,988,568,433,391,360/938,629,159.70
  6. Step 6: Final answer
    x = 1,316,801,801.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.