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Finding the Fourth Proportional to 619,831,472.42, 855,406,117.42 and 341,372,922.14

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Solution

The fourth proportional to 619,831,472.42, 855,406,117.42 and 341,372,922.14 is: 471,115,938.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,831,472.42 : 855,406,117.42 = 341,372,922.14 : x
  2. Step 2: Convert to fraction form
    619,831,472.42/855,406,117.42 = 341,372,922.14/x
  3. Step 3: Cross multiply
    619,831,472.42x = 855,406,117.42 × 341,372,922.14
  4. Step 4: Simplify right side
    619,831,472.42x = 292,012,485,920,097,344
  5. Step 5: Solve for x
    x = 292,012,485,920,097,344/619,831,472.42
  6. Step 6: Final answer
    x = 471,115,938.63

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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.