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Finding the Fourth Proportional to 621,961.20, 932,250.60 and 266,914.80

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Solution

The fourth proportional to 621,961.20, 932,250.60 and 266,914.80 is: 400,075.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,961.20 : 932,250.60 = 266,914.80 : x
  2. Step 2: Convert to fraction form
    621,961.20/932,250.60 = 266,914.80/x
  3. Step 3: Cross multiply
    621,961.20x = 932,250.60 × 266,914.80
  4. Step 4: Simplify right side
    621,961.20x = 248,831,482,448.88
  5. Step 5: Solve for x
    x = 248,831,482,448.88/621,961.20
  6. Step 6: Final answer
    x = 400,075.57

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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.