Home / 874,611,047.25-1,206,977,584.64-522,217,832.13

Finding the Fourth Proportional to 874,611,047.25, 1,206,977,584.64 and 522,217,832.13

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Solution

The fourth proportional to 874,611,047.25, 1,206,977,584.64 and 522,217,832.13 is: 720,669,170.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,611,047.25 : 1,206,977,584.64 = 522,217,832.13 : x
  2. Step 2: Convert to fraction form
    874,611,047.25/1,206,977,584.64 = 522,217,832.13/x
  3. Step 3: Cross multiply
    874,611,047.25x = 1,206,977,584.64 × 522,217,832.13
  4. Step 4: Simplify right side
    874,611,047.25x = 630,305,217,677,593,344
  5. Step 5: Solve for x
    x = 630,305,217,677,593,344/874,611,047.25
  6. Step 6: Final answer
    x = 720,669,170.21

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1.5x scale

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.