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Finding the Fourth Proportional to 653,496,348.20, 917,190,712.60 and 653,496,348.20

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Solution

The fourth proportional to 653,496,348.20, 917,190,712.60 and 653,496,348.20 is: 917,190,712.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,496,348.20 : 917,190,712.60 = 653,496,348.20 : x
  2. Step 2: Convert to fraction form
    653,496,348.20/917,190,712.60 = 653,496,348.20/x
  3. Step 3: Cross multiply
    653,496,348.20x = 917,190,712.60 × 653,496,348.20
  4. Step 4: Simplify right side
    653,496,348.20x = 599,380,781,287,055,744
  5. Step 5: Solve for x
    x = 599,380,781,287,055,744/653,496,348.20
  6. Step 6: Final answer
    x = 917,190,712.60

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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.