Home / 683,941.59-943,857.19-378,022.80

Finding the Fourth Proportional to 683,941.59, 943,857.19 and 378,022.80

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Solution

The fourth proportional to 683,941.59, 943,857.19 and 378,022.80 is: 521,681.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,941.59 : 943,857.19 = 378,022.80 : x
  2. Step 2: Convert to fraction form
    683,941.59/943,857.19 = 378,022.80/x
  3. Step 3: Cross multiply
    683,941.59x = 943,857.19 × 378,022.80
  4. Step 4: Simplify right side
    683,941.59x = 356,799,536,865.42
  5. Step 5: Solve for x
    x = 356,799,536,865.42/683,941.59
  6. Step 6: Final answer
    x = 521,681.30

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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.