Home / 442,965.84-611,080.16-289,936.64

Finding the Fourth Proportional to 442,965.84, 611,080.16 and 289,936.64

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Solution

The fourth proportional to 442,965.84, 611,080.16 and 289,936.64 is: 399,973.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,965.84 : 611,080.16 = 289,936.64 : x
  2. Step 2: Convert to fraction form
    442,965.84/611,080.16 = 289,936.64/x
  3. Step 3: Cross multiply
    442,965.84x = 611,080.16 × 289,936.64
  4. Step 4: Simplify right side
    442,965.84x = 177,174,528,361.06
  5. Step 5: Solve for x
    x = 177,174,528,361.06/442,965.84
  6. Step 6: Final answer
    x = 399,973.34

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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.