Home / 791,681.37-1,189,167.11-640,049.84

Finding the Fourth Proportional to 791,681.37, 1,189,167.11 and 640,049.84

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Solution

The fourth proportional to 791,681.37, 1,189,167.11 and 640,049.84 is: 961,404.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,681.37 : 1,189,167.11 = 640,049.84 : x
  2. Step 2: Convert to fraction form
    791,681.37/1,189,167.11 = 640,049.84/x
  3. Step 3: Cross multiply
    791,681.37x = 1,189,167.11 × 640,049.84
  4. Step 4: Simplify right side
    791,681.37x = 761,126,209,342.68
  5. Step 5: Solve for x
    x = 761,126,209,342.68/791,681.37
  6. Step 6: Final answer
    x = 961,404.72

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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.