Home / 659,421.03-988,993.12-185,995.68

Finding the Fourth Proportional to 659,421.03, 988,993.12 and 185,995.68

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Solution

The fourth proportional to 659,421.03, 988,993.12 and 185,995.68 is: 278,954.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,421.03 : 988,993.12 = 185,995.68 : x
  2. Step 2: Convert to fraction form
    659,421.03/988,993.12 = 185,995.68/x
  3. Step 3: Cross multiply
    659,421.03x = 988,993.12 × 185,995.68
  4. Step 4: Simplify right side
    659,421.03x = 183,948,447,869.72
  5. Step 5: Solve for x
    x = 183,948,447,869.72/659,421.03
  6. Step 6: Final answer
    x = 278,954.48

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Double scale
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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.