Home / 686,523.70-1,029,785.55-434,581.30

Finding the Fourth Proportional to 686,523.70, 1,029,785.55 and 434,581.30

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Solution

The fourth proportional to 686,523.70, 1,029,785.55 and 434,581.30 is: 651,871.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,523.70 : 1,029,785.55 = 434,581.30 : x
  2. Step 2: Convert to fraction form
    686,523.70/1,029,785.55 = 434,581.30/x
  3. Step 3: Cross multiply
    686,523.70x = 1,029,785.55 × 434,581.30
  4. Step 4: Simplify right side
    686,523.70x = 447,525,543,040.22
  5. Step 5: Solve for x
    x = 447,525,543,040.22/686,523.70
  6. Step 6: Final answer
    x = 651,871.95

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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.