Home / 857,459.03-1,286,189.45-217,810.73

Finding the Fourth Proportional to 857,459.03, 1,286,189.45 and 217,810.73

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Solution

The fourth proportional to 857,459.03, 1,286,189.45 and 217,810.73 is: 326,716.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,459.03 : 1,286,189.45 = 217,810.73 : x
  2. Step 2: Convert to fraction form
    857,459.03/1,286,189.45 = 217,810.73/x
  3. Step 3: Cross multiply
    857,459.03x = 1,286,189.45 × 217,810.73
  4. Step 4: Simplify right side
    857,459.03x = 280,145,868,234.16
  5. Step 5: Solve for x
    x = 280,145,868,234.16/857,459.03
  6. Step 6: Final answer
    x = 326,716.33

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Double scale
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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.