Home / 643,444.07-965,173.53-194,168.84

Finding the Fourth Proportional to 643,444.07, 965,173.53 and 194,168.84

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Solution

The fourth proportional to 643,444.07, 965,173.53 and 194,168.84 is: 291,255.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,444.07 : 965,173.53 = 194,168.84 : x
  2. Step 2: Convert to fraction form
    643,444.07/965,173.53 = 194,168.84/x
  3. Step 3: Cross multiply
    643,444.07x = 965,173.53 × 194,168.84
  4. Step 4: Simplify right side
    643,444.07x = 187,406,619,892.94
  5. Step 5: Solve for x
    x = 187,406,619,892.94/643,444.07
  6. Step 6: Final answer
    x = 291,255.50

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Similar ratio
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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.