Home / 871,301.40-1,306,352.70-444,010.20

Finding the Fourth Proportional to 871,301.40, 1,306,352.70 and 444,010.20

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Solution

The fourth proportional to 871,301.40, 1,306,352.70 and 444,010.20 is: 665,709.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,301.40 : 1,306,352.70 = 444,010.20 : x
  2. Step 2: Convert to fraction form
    871,301.40/1,306,352.70 = 444,010.20/x
  3. Step 3: Cross multiply
    871,301.40x = 1,306,352.70 × 444,010.20
  4. Step 4: Simplify right side
    871,301.40x = 580,033,923,597.54
  5. Step 5: Solve for x
    x = 580,033,923,597.54/871,301.40
  6. Step 6: Final answer
    x = 665,709.85

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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.