Home / 624,100,711-861,261,858.30-345,636,396.76

Finding the Fourth Proportional to 624,100,711, 861,261,858.30 and 345,636,396.76

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Solution

The fourth proportional to 624,100,711, 861,261,858.30 and 345,636,396.76 is: 476,979,820.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,100,711 : 861,261,858.30 = 345,636,396.76 : x
  2. Step 2: Convert to fraction form
    624,100,711/861,261,858.30 = 345,636,396.76/x
  3. Step 3: Cross multiply
    624,100,711x = 861,261,858.30 × 345,636,396.76
  4. Step 4: Simplify right side
    624,100,711x = 297,683,445,369,633,664
  5. Step 5: Solve for x
    x = 297,683,445,369,633,664/624,100,711
  6. Step 6: Final answer
    x = 476,979,820.92

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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.