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Finding the Fourth Proportional to 482,075.20, 665,311.49 and 267,256.79

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Solution

The fourth proportional to 482,075.20, 665,311.49 and 267,256.79 is: 368,840.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,075.20 : 665,311.49 = 267,256.79 : x
  2. Step 2: Convert to fraction form
    482,075.20/665,311.49 = 267,256.79/x
  3. Step 3: Cross multiply
    482,075.20x = 665,311.49 × 267,256.79
  4. Step 4: Simplify right side
    482,075.20x = 177,809,013,167.52
  5. Step 5: Solve for x
    x = 177,809,013,167.52/482,075.20
  6. Step 6: Final answer
    x = 368,840.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.