Home / 664,080.45-916,426.74-377,600.51

Finding the Fourth Proportional to 664,080.45, 916,426.74 and 377,600.51

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Solution

The fourth proportional to 664,080.45, 916,426.74 and 377,600.51 is: 521,086.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,080.45 : 916,426.74 = 377,600.51 : x
  2. Step 2: Convert to fraction form
    664,080.45/916,426.74 = 377,600.51/x
  3. Step 3: Cross multiply
    664,080.45x = 916,426.74 × 377,600.51
  4. Step 4: Simplify right side
    664,080.45x = 346,043,204,401.64
  5. Step 5: Solve for x
    x = 346,043,204,401.64/664,080.45
  6. Step 6: Final answer
    x = 521,086.27

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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.