Home / 678,928,586.54-1,022,929,639.11-613,425,858.89

Finding the Fourth Proportional to 678,928,586.54, 1,022,929,639.11 and 613,425,858.89

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Solution

The fourth proportional to 678,928,586.54, 1,022,929,639.11 and 613,425,858.89 is: 924,237,843.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,928,586.54 : 1,022,929,639.11 = 613,425,858.89 : x
  2. Step 2: Convert to fraction form
    678,928,586.54/1,022,929,639.11 = 613,425,858.89/x
  3. Step 3: Cross multiply
    678,928,586.54x = 1,022,929,639.11 × 613,425,858.89
  4. Step 4: Simplify right side
    678,928,586.54x = 627,491,492,449,974,784
  5. Step 5: Solve for x
    x = 627,491,492,449,974,784/678,928,586.54
  6. Step 6: Final answer
    x = 924,237,843.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.