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Finding the Fourth Proportional to 655,065,255.33, 982,269,308.07 and 218,212,355.25

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Solution

The fourth proportional to 655,065,255.33, 982,269,308.07 and 218,212,355.25 is: 327,209,079.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,065,255.33 : 982,269,308.07 = 218,212,355.25 : x
  2. Step 2: Convert to fraction form
    655,065,255.33/982,269,308.07 = 218,212,355.25/x
  3. Step 3: Cross multiply
    655,065,255.33x = 982,269,308.07 × 218,212,355.25
  4. Step 4: Simplify right side
    655,065,255.33x = 214,343,299,203,742,528
  5. Step 5: Solve for x
    x = 214,343,299,203,742,528/655,065,255.33
  6. Step 6: Final answer
    x = 327,209,079.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.