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Finding the Fourth Proportional to 372,366.88, 559,075.20 and 267,128.48

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Solution

The fourth proportional to 372,366.88, 559,075.20 and 267,128.48 is: 401,069.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,366.88 : 559,075.20 = 267,128.48 : x
  2. Step 2: Convert to fraction form
    372,366.88/559,075.20 = 267,128.48/x
  3. Step 3: Cross multiply
    372,366.88x = 559,075.20 × 267,128.48
  4. Step 4: Simplify right side
    372,366.88x = 149,344,908,381.70
  5. Step 5: Solve for x
    x = 149,344,908,381.70/372,366.88
  6. Step 6: Final answer
    x = 401,069.26

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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.