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Finding the Fourth Proportional to 831,700.60, 1,248,134.10 and 532,907.80

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Solution

The fourth proportional to 831,700.60, 1,248,134.10 and 532,907.80 is: 799,735.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,700.60 : 1,248,134.10 = 532,907.80 : x
  2. Step 2: Convert to fraction form
    831,700.60/1,248,134.10 = 532,907.80/x
  3. Step 3: Cross multiply
    831,700.60x = 1,248,134.10 × 532,907.80
  4. Step 4: Simplify right side
    831,700.60x = 665,140,397,335.98
  5. Step 5: Solve for x
    x = 665,140,397,335.98/831,700.60
  6. Step 6: Final answer
    x = 799,735.38

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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.