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Finding the Fourth Proportional to 632,489,201.97, 872,787,442.73 and 384,943,196.85

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Solution

The fourth proportional to 632,489,201.97, 872,787,442.73 and 384,943,196.85 is: 531,192,607.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,489,201.97 : 872,787,442.73 = 384,943,196.85 : x
  2. Step 2: Convert to fraction form
    632,489,201.97/872,787,442.73 = 384,943,196.85/x
  3. Step 3: Cross multiply
    632,489,201.97x = 872,787,442.73 × 384,943,196.85
  4. Step 4: Simplify right side
    632,489,201.97x = 335,973,588,373,097,792
  5. Step 5: Solve for x
    x = 335,973,588,373,097,792/632,489,201.97
  6. Step 6: Final answer
    x = 531,192,607.44

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Double scale
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1.5x scale

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.