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Finding the Fourth Proportional to 304,075.20, 455,456.70 and 251,587.20

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Solution

The fourth proportional to 304,075.20, 455,456.70 and 251,587.20 is: 376,837.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,075.20 : 455,456.70 = 251,587.20 : x
  2. Step 2: Convert to fraction form
    304,075.20/455,456.70 = 251,587.20/x
  3. Step 3: Cross multiply
    304,075.20x = 455,456.70 × 251,587.20
  4. Step 4: Simplify right side
    304,075.20x = 114,587,075,874.24
  5. Step 5: Solve for x
    x = 114,587,075,874.24/304,075.20
  6. Step 6: Final answer
    x = 376,837.95

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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.