Home / 664,086.66-916,435.28-377,606.70

Finding the Fourth Proportional to 664,086.66, 916,435.28 and 377,606.70

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Solution

The fourth proportional to 664,086.66, 916,435.28 and 377,606.70 is: 521,094.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,086.66 : 916,435.28 = 377,606.70 : x
  2. Step 2: Convert to fraction form
    664,086.66/916,435.28 = 377,606.70/x
  3. Step 3: Cross multiply
    664,086.66x = 916,435.28 × 377,606.70
  4. Step 4: Simplify right side
    664,086.66x = 346,052,101,844.38
  5. Step 5: Solve for x
    x = 346,052,101,844.38/664,086.66
  6. Step 6: Final answer
    x = 521,094.79

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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.