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Finding the Fourth Proportional to 703,937,199.26, 970,991,465.13 and 417,626,021.90

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Solution

The fourth proportional to 703,937,199.26, 970,991,465.13 and 417,626,021.90 is: 576,061,761.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,937,199.26 : 970,991,465.13 = 417,626,021.90 : x
  2. Step 2: Convert to fraction form
    703,937,199.26/970,991,465.13 = 417,626,021.90/x
  3. Step 3: Cross multiply
    703,937,199.26x = 970,991,465.13 × 417,626,021.90
  4. Step 4: Simplify right side
    703,937,199.26x = 405,511,302,881,094,464
  5. Step 5: Solve for x
    x = 405,511,302,881,094,464/703,937,199.26
  6. Step 6: Final answer
    x = 576,061,761.34

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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.