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Finding the Fourth Proportional to 455,023.32, 627,903.84 and 251,075.88

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Solution

The fourth proportional to 455,023.32, 627,903.84 and 251,075.88 is: 346,469.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,023.32 : 627,903.84 = 251,075.88 : x
  2. Step 2: Convert to fraction form
    455,023.32/627,903.84 = 251,075.88/x
  3. Step 3: Cross multiply
    455,023.32x = 627,903.84 × 251,075.88
  4. Step 4: Simplify right side
    455,023.32x = 157,651,509,183.38
  5. Step 5: Solve for x
    x = 157,651,509,183.38/455,023.32
  6. Step 6: Final answer
    x = 346,469.08

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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.