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Finding the Fourth Proportional to 472,103.82, 651,503.34 and 257,243.94

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Solution

The fourth proportional to 472,103.82, 651,503.34 and 257,243.94 is: 354,996.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,103.82 : 651,503.34 = 257,243.94 : x
  2. Step 2: Convert to fraction form
    472,103.82/651,503.34 = 257,243.94/x
  3. Step 3: Cross multiply
    472,103.82x = 651,503.34 × 257,243.94
  4. Step 4: Simplify right side
    472,103.82x = 167,595,286,104.76
  5. Step 5: Solve for x
    x = 167,595,286,104.76/472,103.82
  6. Step 6: Final answer
    x = 354,996.67

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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.