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Finding the Fourth Proportional to 627,717.48, 866,255.76 and 341,238.12

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Solution

The fourth proportional to 627,717.48, 866,255.76 and 341,238.12 is: 470,911.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,717.48 : 866,255.76 = 341,238.12 : x
  2. Step 2: Convert to fraction form
    627,717.48/866,255.76 = 341,238.12/x
  3. Step 3: Cross multiply
    627,717.48x = 866,255.76 × 341,238.12
  4. Step 4: Simplify right side
    627,717.48x = 295,599,486,981.57
  5. Step 5: Solve for x
    x = 295,599,486,981.57/627,717.48
  6. Step 6: Final answer
    x = 470,911.67

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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.