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Finding the Fourth Proportional to 703,607,754.22, 970,575,289.36 and 438,830,061.40

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Solution

The fourth proportional to 703,607,754.22, 970,575,289.36 and 438,830,061.40 is: 605,333,882.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,607,754.22 : 970,575,289.36 = 438,830,061.40 : x
  2. Step 2: Convert to fraction form
    703,607,754.22/970,575,289.36 = 438,830,061.40/x
  3. Step 3: Cross multiply
    703,607,754.22x = 970,575,289.36 × 438,830,061.40
  4. Step 4: Simplify right side
    703,607,754.22x = 425,917,613,823,171,520
  5. Step 5: Solve for x
    x = 425,917,613,823,171,520/703,607,754.22
  6. Step 6: Final answer
    x = 605,333,882.79

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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.