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Finding the Fourth Proportional to 519,692.62, 716,780.63 and 447,217.67

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Solution

The fourth proportional to 519,692.62, 716,780.63 and 447,217.67 is: 616,820.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,692.62 : 716,780.63 = 447,217.67 : x
  2. Step 2: Convert to fraction form
    519,692.62/716,780.63 = 447,217.67/x
  3. Step 3: Cross multiply
    519,692.62x = 716,780.63 × 447,217.67
  4. Step 4: Simplify right side
    519,692.62x = 320,556,960,783.87
  5. Step 5: Solve for x
    x = 320,556,960,783.87/519,692.62
  6. Step 6: Final answer
    x = 616,820.31

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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.