Home / 683,938.98-943,884.63-378,008.79

Finding the Fourth Proportional to 683,938.98, 943,884.63 and 378,008.79

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Solution

The fourth proportional to 683,938.98, 943,884.63 and 378,008.79 is: 521,679.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,938.98 : 943,884.63 = 378,008.79 : x
  2. Step 2: Convert to fraction form
    683,938.98/943,884.63 = 378,008.79/x
  3. Step 3: Cross multiply
    683,938.98x = 943,884.63 × 378,008.79
  4. Step 4: Simplify right side
    683,938.98x = 356,796,683,346.33
  5. Step 5: Solve for x
    x = 356,796,683,346.33/683,938.98
  6. Step 6: Final answer
    x = 521,679.12

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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.