Home / 874,611,049.25-1,206,977,587.40-522,217,834.13

Finding the Fourth Proportional to 874,611,049.25, 1,206,977,587.40 and 522,217,834.13

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Solution

The fourth proportional to 874,611,049.25, 1,206,977,587.40 and 522,217,834.13 is: 720,669,172.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,611,049.25 : 1,206,977,587.40 = 522,217,834.13 : x
  2. Step 2: Convert to fraction form
    874,611,049.25/1,206,977,587.40 = 522,217,834.13/x
  3. Step 3: Cross multiply
    874,611,049.25x = 1,206,977,587.40 × 522,217,834.13
  4. Step 4: Simplify right side
    874,611,049.25x = 630,305,221,535,480,832
  5. Step 5: Solve for x
    x = 630,305,221,535,480,832/874,611,049.25
  6. Step 6: Final answer
    x = 720,669,172.97

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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.