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Finding the Fourth Proportional to 373,075.20, 559,407.60 and 254,880

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Solution

The fourth proportional to 373,075.20, 559,407.60 and 254,880 is: 382,179.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,075.20 : 559,407.60 = 254,880 : x
  2. Step 2: Convert to fraction form
    373,075.20/559,407.60 = 254,880/x
  3. Step 3: Cross multiply
    373,075.20x = 559,407.60 × 254,880
  4. Step 4: Simplify right side
    373,075.20x = 142,581,809,088
  5. Step 5: Solve for x
    x = 142,581,809,088/373,075.20
  6. Step 6: Final answer
    x = 382,179.81

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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.