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Finding the Fourth Proportional to 674,611.80, 1,012,602.42 and 337,893.72

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Solution

The fourth proportional to 674,611.80, 1,012,602.42 and 337,893.72 is: 507,183.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,611.80 : 1,012,602.42 = 337,893.72 : x
  2. Step 2: Convert to fraction form
    674,611.80/1,012,602.42 = 337,893.72/x
  3. Step 3: Cross multiply
    674,611.80x = 1,012,602.42 × 337,893.72
  4. Step 4: Simplify right side
    674,611.80x = 342,151,998,574.80
  5. Step 5: Solve for x
    x = 342,151,998,574.80/674,611.80
  6. Step 6: Final answer
    x = 507,183.54

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1.5x scale

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.