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Finding the Fourth Proportional to 527,172.88, 791,199.96 and 477,571.76

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Solution

The fourth proportional to 527,172.88, 791,199.96 and 477,571.76 is: 716,756.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,172.88 : 791,199.96 = 477,571.76 : x
  2. Step 2: Convert to fraction form
    527,172.88/791,199.96 = 477,571.76/x
  3. Step 3: Cross multiply
    527,172.88x = 791,199.96 × 477,571.76
  4. Step 4: Simplify right side
    527,172.88x = 377,854,757,409.13
  5. Step 5: Solve for x
    x = 377,854,757,409.13/527,172.88
  6. Step 6: Final answer
    x = 716,756.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.