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Finding the Fourth Proportional to 449,064,043.20, 627,159,110.40 and 449,064,043.20

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Solution

The fourth proportional to 449,064,043.20, 627,159,110.40 and 449,064,043.20 is: 627,159,110.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,064,043.20 : 627,159,110.40 = 449,064,043.20 : x
  2. Step 2: Convert to fraction form
    449,064,043.20/627,159,110.40 = 449,064,043.20/x
  3. Step 3: Cross multiply
    449,064,043.20x = 627,159,110.40 × 449,064,043.20
  4. Step 4: Simplify right side
    449,064,043.20x = 281,634,605,845,939,136
  5. Step 5: Solve for x
    x = 281,634,605,845,939,136/449,064,043.20
  6. Step 6: Final answer
    x = 627,159,110.40

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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.