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Finding the Fourth Proportional to 267,085.80, 400,628.70 and 178,050.60

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Solution

The fourth proportional to 267,085.80, 400,628.70 and 178,050.60 is: 267,075.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,085.80 : 400,628.70 = 178,050.60 : x
  2. Step 2: Convert to fraction form
    267,085.80/400,628.70 = 178,050.60/x
  3. Step 3: Cross multiply
    267,085.80x = 400,628.70 × 178,050.60
  4. Step 4: Simplify right side
    267,085.80x = 71,332,180,412.22
  5. Step 5: Solve for x
    x = 71,332,180,412.22/267,085.80
  6. Step 6: Final answer
    x = 267,075.90

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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.