Home / 810,512.50-1,214,772.28-454,779.18

Finding the Fourth Proportional to 810,512.50, 1,214,772.28 and 454,779.18

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Solution

The fourth proportional to 810,512.50, 1,214,772.28 and 454,779.18 is: 681,609.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,512.50 : 1,214,772.28 = 454,779.18 : x
  2. Step 2: Convert to fraction form
    810,512.50/1,214,772.28 = 454,779.18/x
  3. Step 3: Cross multiply
    810,512.50x = 1,214,772.28 × 454,779.18
  4. Step 4: Simplify right side
    810,512.50x = 552,453,135,311.27
  5. Step 5: Solve for x
    x = 552,453,135,311.27/810,512.50
  6. Step 6: Final answer
    x = 681,609.65

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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.