Home / 681,137.70-1,021,706.55-606,342.30

Finding the Fourth Proportional to 681,137.70, 1,021,706.55 and 606,342.30

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Solution

The fourth proportional to 681,137.70, 1,021,706.55 and 606,342.30 is: 909,513.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,137.70 : 1,021,706.55 = 606,342.30 : x
  2. Step 2: Convert to fraction form
    681,137.70/1,021,706.55 = 606,342.30/x
  3. Step 3: Cross multiply
    681,137.70x = 1,021,706.55 × 606,342.30
  4. Step 4: Simplify right side
    681,137.70x = 619,503,899,452.07
  5. Step 5: Solve for x
    x = 619,503,899,452.07/681,137.70
  6. Step 6: Final answer
    x = 909,513.45

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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.