Home / 686,141.70-1,029,212.55-461,609.70

Finding the Fourth Proportional to 686,141.70, 1,029,212.55 and 461,609.70

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Solution

The fourth proportional to 686,141.70, 1,029,212.55 and 461,609.70 is: 692,414.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,141.70 : 1,029,212.55 = 461,609.70 : x
  2. Step 2: Convert to fraction form
    686,141.70/1,029,212.55 = 461,609.70/x
  3. Step 3: Cross multiply
    686,141.70x = 1,029,212.55 × 461,609.70
  4. Step 4: Simplify right side
    686,141.70x = 475,094,496,441.74
  5. Step 5: Solve for x
    x = 475,094,496,441.74/686,141.70
  6. Step 6: Final answer
    x = 692,414.55

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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.