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Finding the Fourth Proportional to 626,564.92, 864,659.66 and 340,084.94

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Solution

The fourth proportional to 626,564.92, 864,659.66 and 340,084.94 is: 469,317.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,564.92 : 864,659.66 = 340,084.94 : x
  2. Step 2: Convert to fraction form
    626,564.92/864,659.66 = 340,084.94/x
  3. Step 3: Cross multiply
    626,564.92x = 864,659.66 × 340,084.94
  4. Step 4: Simplify right side
    626,564.92x = 294,057,728,591.52
  5. Step 5: Solve for x
    x = 294,057,728,591.52/626,564.92
  6. Step 6: Final answer
    x = 469,317.26

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Similar ratio
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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.