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Finding the Fourth Proportional to 641,722.35, 886,176.94 and 412,677.39

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Solution

The fourth proportional to 641,722.35, 886,176.94 and 412,677.39 is: 569,880.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,722.35 : 886,176.94 = 412,677.39 : x
  2. Step 2: Convert to fraction form
    641,722.35/886,176.94 = 412,677.39/x
  3. Step 3: Cross multiply
    641,722.35x = 886,176.94 × 412,677.39
  4. Step 4: Simplify right side
    641,722.35x = 365,705,186,677.39
  5. Step 5: Solve for x
    x = 365,705,186,677.39/641,722.35
  6. Step 6: Final answer
    x = 569,880.71

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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.