Home / 769,706.85-1,062,364.06-447,602.76

Finding the Fourth Proportional to 769,706.85, 1,062,364.06 and 447,602.76

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Solution

The fourth proportional to 769,706.85, 1,062,364.06 and 447,602.76 is: 617,789.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,706.85 : 1,062,364.06 = 447,602.76 : x
  2. Step 2: Convert to fraction form
    769,706.85/1,062,364.06 = 447,602.76/x
  3. Step 3: Cross multiply
    769,706.85x = 1,062,364.06 × 447,602.76
  4. Step 4: Simplify right side
    769,706.85x = 475,517,077,830.97
  5. Step 5: Solve for x
    x = 475,517,077,830.97/769,706.85
  6. Step 6: Final answer
    x = 617,789.85

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.