Home / 873,690,682.38-1,310,540,922.78-291,423,329.45

Finding the Fourth Proportional to 873,690,682.38, 1,310,540,922.78 and 291,423,329.45

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Solution

The fourth proportional to 873,690,682.38, 1,310,540,922.78 and 291,423,329.45 is: 437,136,628.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,690,682.38 : 1,310,540,922.78 = 291,423,329.45 : x
  2. Step 2: Convert to fraction form
    873,690,682.38/1,310,540,922.78 = 291,423,329.45/x
  3. Step 3: Cross multiply
    873,690,682.38x = 1,310,540,922.78 × 291,423,329.45
  4. Step 4: Simplify right side
    873,690,682.38x = 381,922,199,097,022,912
  5. Step 5: Solve for x
    x = 381,922,199,097,022,912/873,690,682.38
  6. Step 6: Final answer
    x = 437,136,628.33

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.