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Finding the Fourth Proportional to 293,075.40, 440,585.10 and 254,584.20

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Solution

The fourth proportional to 293,075.40, 440,585.10 and 254,584.20 is: 382,720.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,075.40 : 440,585.10 = 254,584.20 : x
  2. Step 2: Convert to fraction form
    293,075.40/440,585.10 = 254,584.20/x
  3. Step 3: Cross multiply
    293,075.40x = 440,585.10 × 254,584.20
  4. Step 4: Simplify right side
    293,075.40x = 112,166,005,215.42
  5. Step 5: Solve for x
    x = 112,166,005,215.42/293,075.40
  6. Step 6: Final answer
    x = 382,720.64

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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.