Home / 418,764.80-627,936.96-193,931.84

Finding the Fourth Proportional to 418,764.80, 627,936.96 and 193,931.84

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Solution

The fourth proportional to 418,764.80, 627,936.96 and 193,931.84 is: 290,800.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,764.80 : 627,936.96 = 193,931.84 : x
  2. Step 2: Convert to fraction form
    418,764.80/627,936.96 = 193,931.84/x
  3. Step 3: Cross multiply
    418,764.80x = 627,936.96 × 193,931.84
  4. Step 4: Simplify right side
    418,764.80x = 121,776,970,056.81
  5. Step 5: Solve for x
    x = 121,776,970,056.81/418,764.80
  6. Step 6: Final answer
    x = 290,800.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.