Home / 686,515.70-1,029,773.55-434,573.30

Finding the Fourth Proportional to 686,515.70, 1,029,773.55 and 434,573.30

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Solution

The fourth proportional to 686,515.70, 1,029,773.55 and 434,573.30 is: 651,859.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,515.70 : 1,029,773.55 = 434,573.30 : x
  2. Step 2: Convert to fraction form
    686,515.70/1,029,773.55 = 434,573.30/x
  3. Step 3: Cross multiply
    686,515.70x = 1,029,773.55 × 434,573.30
  4. Step 4: Simplify right side
    686,515.70x = 447,512,089,876.22
  5. Step 5: Solve for x
    x = 447,512,089,876.22/686,515.70
  6. Step 6: Final answer
    x = 651,859.95

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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.